Sea to Summit Reactor Sleeping Bag Liner
Sea to Summit Reactor Sleeping Bag Liner
Optimised for minimal weight and maximum warmth, the Sea to Summit Reactor Lightweight Sleeping Bag Liner boosts your sleep system performance without adding unnecessary bulk. Built with advanced Thermolite® Pro fabric, it uses infrared-absorbing ceramic pigments and hollow-core fibres to trap body heat and add up to 4°C of extra warmth. The stretch-knit construction and shaped arm openings allow natural movement through the night, while the ergonomic hood enhances thermal efficiency without feeling restrictive. Treated with HeiQ Fresh odour control, the Reactor Lightweight stays fresher for longer, dries quickly, and helps extend the life of your sleeping bag by reducing wash frequency. Designed for backpacking, cycle touring, and paddle touring, it’s a compact, technical liner for ultralight adventures.
Sea to Summit Reactor Lightweight Sleeping Bag Liner – Key Features
- Thermolite® Pro insulation: Hollow-core fibres and infrared-absorbing pigments enhance warmth with minimal pack size.
- Adds warmth: Increases sleeping bag performance by up to 4°C.
- Stretch comfort: Stretch-knit fabric fits any sleeping bag shape and allows unrestricted movement.
- Technical hood design: Ergonomic hood improves warmth without adding bulk.
- HeiQ Fresh odour control: Helps keep the liner fresh after extended use.
- Sleep system integration: Shoulder snap connectors pair with compatible Sea to Summit sleeping bags.
- Machine washable: Easy care construction reduces wear on your sleeping bag.
- Lower impact materials: Made with certified recycled fibres and bluesign APPROVED materials.
Specifications – Reactor Lightweight Sleeping Bag Liner
- Best Use: Backpacking, Cycle Touring, Paddle Touring
- Type: Thermal Liner
- Material(s): 100% Post-Consumer Recycled Polyester
- Stuff Sack Material: 100% Polyester
- Temperature Boost: Up to +4°C
Available Sizes
-
Short
Weight: 235 g
Dimensions: 178 x 80 cm
Packed Size: 10 x 18 x 10 cm
Fits Up To Height: 170 cm -
Regular
Weight: 255 g
Dimensions: 193 x 80 cm
Packed Size: 10 x 18 x 10 cm
Fits Up To Height: 185 cm -
Long
Weight: 270 g
Dimensions: 206 x 80 cm
Packed Size: 10 x 18 x 10 cm
Fits Up To Height: 198 cm
Check These Products OUT
Sea to Summit Spark Down Sleeping Bag -1C|30F - Long RDS
$699.99
Built for fast-and-light adventures without sacrificing real warmth, the Sea to Summit Spark Down Sleeping Bag -1C|30F – Long (RDS) is a premium 2-season ultralight bag designed for serious backpackers counting grams. It’s filled with RDS-certified 850+ fillpower goose down treated with a non-PFAS Ultra-Dry Down treatment for reliable thermal performance in damp conditions. A super-breathable 10D liner and 10D shell with PFAS-free DWR keep things comfortable and help shed wind and condensation, while the highly water-repellent hood and footbox fabric add extra protection where it matters most. The technical hood and zipper draft tube help seal in warmth, and the ergonomic mummy shape keeps the fit efficient without feeling overly restrictive. For couples, the full-length zipper models in the Spark range can be zipped to an equivalent Women’s Spark for shared comfort.
Sea to Summit Spark -1C Long – Key Features
- RDS-certified 850+ down: Goose down with non-PFAS Ultra-Dry Down treatment for high warmth-to-weight performance.
- Ultralight 10D fabrics: Breathable 10D liner and a 10D shell with PFAS-free DWR for comfort and weather resistance.
- Technical warmth features: Technical hood and zipper draft tube to retain heat on cooler nights.
- Ergonomic mummy shape: Efficient thermal fit without being “ultra tight”.
- Snag-free zipper performance: YKK #5 zipper with zipper plough for reliable, smooth operation.
- Temperature-specific construction: Hybrid baffle design (box baffles in torso, sewn-through in leg area) to balance warmth and weight.
- Lifetime backed: Sea to Summit Guarantee is offered for the lifetime of the product.
Specifications – Spark Down Sleeping Bag -1C|30F (Long)
- Best Use: Ultralight Backpacking
- Performance: 2 Season
- Temperature Rating (ISO Lower Limit): -1°C
- Women's Temp Rating (ISO Comfort): 4°C
- Insulation: RDS certified, 850+ non-PFAS Ultra-Dry Down
- Shape: Mummy
- Zip Options: YKK #5 zipper with snag free zipper plough
- Weight: 536 g
- Fill Weight: 305 g
- Compressed Volume: 5.1 L
- Compression Sack: 8 L (40D recycled, bluesign APPROVED nylon compression bag)
- Fits Up To Height: 198 cm
Built for fast-and-light adventures without sacrificing real warmth, the Sea to Summit Spark Down Sleeping Bag -1C|30F – Long (RDS) is a premium 2-season ultralight bag designed for serious backpackers counting grams. It’s filled with RDS-certified 850+ fillpower goose down treated with a non-PFAS Ultra-Dry Down treatment for reliable thermal performance in damp conditions. A super-breathable 10D liner and 10D shell with PFAS-free DWR keep things comfortable and help shed wind and condensation, while the highly water-repellent hood and footbox fabric add extra protection where it matters most. The technical hood and zipper draft tube help seal in warmth, and the ergonomic mummy shape keeps the fit efficient without feeling overly restrictive. For couples, the full-length zipper models in the Spark range can be zipped to an equivalent Women’s Spark for shared comfort.
Sea to Summit Spark -1C Long – Key Features
- RDS-certified 850+ down: Goose down with non-PFAS Ultra-Dry Down treatment for high warmth-to-weight performance.
- Ultralight 10D fabrics: Breathable 10D liner and a 10D shell with PFAS-free DWR for comfort and weather resistance.
- Technical warmth features: Technical hood and zipper draft tube to retain heat on cooler nights.
- Ergonomic mummy shape: Efficient thermal fit without being “ultra tight”.
- Snag-free zipper performance: YKK #5 zipper with zipper plough for reliable, smooth operation.
- Temperature-specific construction: Hybrid baffle design (box baffles in torso, sewn-through in leg area) to balance warmth and weight.
- Lifetime backed: Sea to Summit Guarantee is offered for the lifetime of the product.
Specifications – Spark Down Sleeping Bag -1C|30F (Long)
- Best Use: Ultralight Backpacking
- Performance: 2 Season
- Temperature Rating (ISO Lower Limit): -1°C
- Women's Temp Rating (ISO Comfort): 4°C
- Insulation: RDS certified, 850+ non-PFAS Ultra-Dry Down
- Shape: Mummy
- Zip Options: YKK #5 zipper with snag free zipper plough
- Weight: 536 g
- Fill Weight: 305 g
- Compressed Volume: 5.1 L
- Compression Sack: 8 L (40D recycled, bluesign APPROVED nylon compression bag)
- Fits Up To Height: 198 cm
Sea to Summit Lightweight Compression Sack
$49.99
The Sea to Summit Lightweight Compression Sack – 20L – Surf Blue provides generous storage capacity with efficient compression for larger soft gear. Designed for backpacking and pack organisation, it is constructed from durable recycled 70D nylon with a 2,000mm PU coating and PFC-free DWR finish. While water resistant for internal pack use, it is not fully waterproof due to non-sealed seams. The four-strap compression system ensures even pressure and eliminates bulging for tidy, compact storage.
Sea to Summit Lightweight Compression Sack – 20L – Surf Blue Key Features:
- Large-capacity compression: Ideal for sleeping bags, insulated jackets or bulkier clothing.
- Four-strap system: Even compression prevents uneven bulging.
- Durable recycled nylon: 70D fabric with 2,000mm PU coating.
- Flip-top lid design: Reduces strap tangling during packing.
- White interior coating: Improves visibility inside the sack.
- Reinforced grab handle: Strong webbing handle for easy removal from packs.
Specifications – 20L
- Best Use: Pack Organisation
- Capacity: 20 Litres
- Weight: 134g
- Dimensions: 24 x 24 x 47.5 cm
- Closure: Drawstring with compression straps
- Waterproof? Water resistant only – seams not tape sealed
Designed for larger loads, the 20L Surf Blue Compression Sack keeps bulky gear compact and organised without adding unnecessary weight.
The Sea to Summit Lightweight Compression Sack – 20L – Surf Blue provides generous storage capacity with efficient compression for larger soft gear. Designed for backpacking and pack organisation, it is constructed from durable recycled 70D nylon with a 2,000mm PU coating and PFC-free DWR finish. While water resistant for internal pack use, it is not fully waterproof due to non-sealed seams. The four-strap compression system ensures even pressure and eliminates bulging for tidy, compact storage.
Sea to Summit Lightweight Compression Sack – 20L – Surf Blue Key Features:
- Large-capacity compression: Ideal for sleeping bags, insulated jackets or bulkier clothing.
- Four-strap system: Even compression prevents uneven bulging.
- Durable recycled nylon: 70D fabric with 2,000mm PU coating.
- Flip-top lid design: Reduces strap tangling during packing.
- White interior coating: Improves visibility inside the sack.
- Reinforced grab handle: Strong webbing handle for easy removal from packs.
Specifications – 20L
- Best Use: Pack Organisation
- Capacity: 20 Litres
- Weight: 134g
- Dimensions: 24 x 24 x 47.5 cm
- Closure: Drawstring with compression straps
- Waterproof? Water resistant only – seams not tape sealed
Designed for larger loads, the 20L Surf Blue Compression Sack keeps bulky gear compact and organised without adding unnecessary weight.
Sea to Summit Evac Compression Dry Bag UL
$77.99
The Sea to Summit Evac Compression Dry Bag UL – 20L provides high-capacity waterproof compression storage for extended backpacking and paddle sports adventures. Built from bluesign APPROVED Ultra-Sil 30D Cordura® nylon with a non-PFAS DWR finish, it protects gear from rain and spray while allowing trapped air to escape through the EVAC fabric base. The reinforced roll-top closure and four-strap compression system enable even, secure packing of larger soft items.
Sea to Summit Evac Compression Dry Bag UL – 20L Key Features:
- Large capacity storage: 20 litres for sleeping bags, insulated jackets or bulkier gear.
- EVAC air-permeable base: Allows compression without purge valves.
- Reliable waterproofing: Roll-top closure with patented Field Repair Buckle.
- Even four-strap compression: Prevents bulging and maximises space efficiency.
- Ultralight yet durable: Ultra-Sil 30D Cordura® nylon construction.
- Sealed seams: Double-stitched and tape-sealed for dependable protection.
Specifications – 20L
- Best Use: Backpacking & Paddle Sports
- Capacity: 20 Litres
- Weight: 110g
- Dimensions: 24.2 x 24.2 x 47.6 cm
- Closure: Hypalon roll-top with compression straps
Offering maximum compression and generous capacity, the 20L Evac Dry Bag is ideal for protecting and compacting larger gear inside your pack.
The Sea to Summit Evac Compression Dry Bag UL – 20L provides high-capacity waterproof compression storage for extended backpacking and paddle sports adventures. Built from bluesign APPROVED Ultra-Sil 30D Cordura® nylon with a non-PFAS DWR finish, it protects gear from rain and spray while allowing trapped air to escape through the EVAC fabric base. The reinforced roll-top closure and four-strap compression system enable even, secure packing of larger soft items.
Sea to Summit Evac Compression Dry Bag UL – 20L Key Features:
- Large capacity storage: 20 litres for sleeping bags, insulated jackets or bulkier gear.
- EVAC air-permeable base: Allows compression without purge valves.
- Reliable waterproofing: Roll-top closure with patented Field Repair Buckle.
- Even four-strap compression: Prevents bulging and maximises space efficiency.
- Ultralight yet durable: Ultra-Sil 30D Cordura® nylon construction.
- Sealed seams: Double-stitched and tape-sealed for dependable protection.
Specifications – 20L
- Best Use: Backpacking & Paddle Sports
- Capacity: 20 Litres
- Weight: 110g
- Dimensions: 24.2 x 24.2 x 47.6 cm
- Closure: Hypalon roll-top with compression straps
Offering maximum compression and generous capacity, the 20L Evac Dry Bag is ideal for protecting and compacting larger gear inside your pack.
Sea to Summit Breeze Sleeping Bag Liner - Regular RCS
$99.99
The Sea to Summit Breeze Sleeping Bag Liner – Regular RCS delivers breathable comfort for warm-weather adventures and lightweight travel. Designed for backpacking, cycle touring and paddle touring, this cooling liner blends COOLMAX® EcoMade polyester with biobased Tencel Lyocell fibres to wick moisture and regulate temperature through the night. The super-stretch knitted construction allows natural movement whether you sleep still or tend to toss and turn. Easy to wash, quick drying and treated with HeiQ Fresh odour control, it also helps extend the lifespan of your sleeping bag by reducing wash frequency.
Sea to Summit Breeze Sleeping Bag Liner – Regular RCS Key Features:
- Cooling comfort: COOLMAX® EcoMade and Tencel Lyocell fibres work together to wick moisture and regulate temperature on warm nights.
- Stretch fit design: Knitted stretch fabric adapts to any sleeping bag shape and allows unrestricted movement.
- Odour control: HeiQ Fresh technology keeps the liner feeling fresher for longer on multi-day trips.
- Ventilated footbox: Mummy version includes a drawcord footbox for improved airflow and comfort.
- Climate Control openings: Technical hood and shoulder openings maximise mobility without adding unnecessary weight.
- Protects your sleeping bag: Reduces dirt and body oils reaching your bag, helping preserve loft and performance.
- Easy care: Machine washable and quick drying for low-maintenance travel.
- Responsible construction: Made with certified recycled materials and bluesign APPROVED components.
Specifications – Regular
- Best Use: Backpacking, Cycle Touring, Paddle Touring
- Type: Cooling Liner
- Weight: 275g (9.7oz)
- Dimensions: 205 x 80 cm
- Packed Size: 10 x 18 x 10 cm
- Fits Up To Height: 185 cm
- Materials: 70% Polyester, 30% Tencel Lyocell
Lightweight, compact and breathable, the Regular Breeze Liner is a versatile sleep solution for warm conditions and a practical way to keep your sleeping bag cleaner for longer.
The Sea to Summit Breeze Sleeping Bag Liner – Regular RCS delivers breathable comfort for warm-weather adventures and lightweight travel. Designed for backpacking, cycle touring and paddle touring, this cooling liner blends COOLMAX® EcoMade polyester with biobased Tencel Lyocell fibres to wick moisture and regulate temperature through the night. The super-stretch knitted construction allows natural movement whether you sleep still or tend to toss and turn. Easy to wash, quick drying and treated with HeiQ Fresh odour control, it also helps extend the lifespan of your sleeping bag by reducing wash frequency.
Sea to Summit Breeze Sleeping Bag Liner – Regular RCS Key Features:
- Cooling comfort: COOLMAX® EcoMade and Tencel Lyocell fibres work together to wick moisture and regulate temperature on warm nights.
- Stretch fit design: Knitted stretch fabric adapts to any sleeping bag shape and allows unrestricted movement.
- Odour control: HeiQ Fresh technology keeps the liner feeling fresher for longer on multi-day trips.
- Ventilated footbox: Mummy version includes a drawcord footbox for improved airflow and comfort.
- Climate Control openings: Technical hood and shoulder openings maximise mobility without adding unnecessary weight.
- Protects your sleeping bag: Reduces dirt and body oils reaching your bag, helping preserve loft and performance.
- Easy care: Machine washable and quick drying for low-maintenance travel.
- Responsible construction: Made with certified recycled materials and bluesign APPROVED components.
Specifications – Regular
- Best Use: Backpacking, Cycle Touring, Paddle Touring
- Type: Cooling Liner
- Weight: 275g (9.7oz)
- Dimensions: 205 x 80 cm
- Packed Size: 10 x 18 x 10 cm
- Fits Up To Height: 185 cm
- Materials: 70% Polyester, 30% Tencel Lyocell
Lightweight, compact and breathable, the Regular Breeze Liner is a versatile sleep solution for warm conditions and a practical way to keep your sleeping bag cleaner for longer.
Mystery Ranch Metcalf Mens Pack - 75L
$929.99 $743.00
The Mystery Ranch Metcalf Mens Pack - 75L invites adventurers to experience the ultimate blend of durability and functionality in a high-capacity pack. Designed for those who require both lightweight versatility and robust load-bearing capabilities, this bag is perfect for extended trips into the wild. Its roll-top closure and side zip offer effortless access and adaptability, while the ultralight frame ensures every ounce is used efficiently. With external blaze orange frame tabs and zippered pockets on a detachable lid, this pack facilitates easy organisation and quick access to essentials. Multiple compression straps and innovative attachment points ensure that your gear remains secure, no matter how much you pack. Whether you're navigating rugged terrain or setting up camp, the Mystery Ranch Metcalf Mens Pack is crafted to adapt to your every need, providing a reliable and versatile companion for your outdoor adventures.
Mystery Ranch Metcalf Mens Pack - 75L Features:
- Roll-top closure and one side zip: Offers versatile access options and allows for easy adaptation to varying load sizes.
- Ultralight frame: Minimises weight while maximising the capacity to bear heavy loads, enhancing your trekking efficiency.
- External blaze orange frame tabs: Enables easy attachment of accessories, providing added customisation and functionality.
- Zippered pockets on detachable lid: Ensures quick and secure access to frequently used items, enhancing organisational convenience.
- Multiple compression straps: Keeps your gear firmly in place, maintaining balance and stability throughout your journey.
- Multiple attachment points for lid straps: Allows for secure lid placement regardless of the pack's load, offering flexibility and reliability.
- Side attachment points for lid straps: Useful when using the bag without the lid, ensuring the roll-top closure remains tightly secured.
- Interior blaze orange ribbon loops: Facilitates the attachment of Small and Medium Quick Attach Zoid Bags, enhancing internal organisation.
The Mystery Ranch Metcalf Mens Pack - 75L invites adventurers to experience the ultimate blend of durability and functionality in a high-capacity pack. Designed for those who require both lightweight versatility and robust load-bearing capabilities, this bag is perfect for extended trips into the wild. Its roll-top closure and side zip offer effortless access and adaptability, while the ultralight frame ensures every ounce is used efficiently. With external blaze orange frame tabs and zippered pockets on a detachable lid, this pack facilitates easy organisation and quick access to essentials. Multiple compression straps and innovative attachment points ensure that your gear remains secure, no matter how much you pack. Whether you're navigating rugged terrain or setting up camp, the Mystery Ranch Metcalf Mens Pack is crafted to adapt to your every need, providing a reliable and versatile companion for your outdoor adventures.
Mystery Ranch Metcalf Mens Pack - 75L Features:
- Roll-top closure and one side zip: Offers versatile access options and allows for easy adaptation to varying load sizes.
- Ultralight frame: Minimises weight while maximising the capacity to bear heavy loads, enhancing your trekking efficiency.
- External blaze orange frame tabs: Enables easy attachment of accessories, providing added customisation and functionality.
- Zippered pockets on detachable lid: Ensures quick and secure access to frequently used items, enhancing organisational convenience.
- Multiple compression straps: Keeps your gear firmly in place, maintaining balance and stability throughout your journey.
- Multiple attachment points for lid straps: Allows for secure lid placement regardless of the pack's load, offering flexibility and reliability.
- Side attachment points for lid straps: Useful when using the bag without the lid, ensuring the roll-top closure remains tightly secured.
- Interior blaze orange ribbon loops: Facilitates the attachment of Small and Medium Quick Attach Zoid Bags, enhancing internal organisation.
GUNS AND AMMO CAN NOT BE SHIPPED, PLEASE VISIT ONE OF OUR STORES TO PURCHASE.
Shipping Rates & Options
We offer straightforward flat rate shipping options:
- Standard Shipping - $14.99: Generally delivered within 2 - 4 days of dispatch to metropolitan areas. Please allow an extra 1 - 2 days for us to pick and pack your order. You will be given tracking details to monitor your order's journey.
- Jump The Queue Shipping - $19.99: For those in a hurry, orders placed before 2 pm AEST will be packed and dispatched on the same day. If placed after 2 pm AEST, they'll be dispatched the next business day. Tracking details will be provided for your convenience. Please note that this is not express shipping, for express shipping quotes please contact our team at 07 3391 2299.
Additional Shipping Charges
- Bulky Items Surcharge - $39.99: Certain items due to their size and nature require an additional fee for shipping. Bulky items include, but are not limited to, Firearms, Compound Bows, and Spearguns.
- Extra Bulky Item Surcharge - $89.99:Certain items due to their size and nature require an additional fee for shipping. Extra Bulky items include, but are not limited to, Firearm Safes, Treestands and Feeders.
- Shipping Insurance - $4.99: For added peace of mind, avail of our Australia-wide shipping insurance to safeguard your order during transit.
Shipping Specifics
Please note:
- Prices mentioned apply mainly to mainland Australia. Offshore islands and territories might face extra delivery costs. In such instances, our customer service will reach out to you.
- For larger or bulkier orders which necessitate road transport, delivery times might extend.




