Yellow sleeping bag liner with a drawcord footbox
Black sleeping bag liner with a sewn foot box
A person demonstrating the use of a drawcord to seal the footbox of a sleeping bag liner
Close up of the drawcord on the hood of a sleeping bag line
Close up of a drawcord footbox on a sleeping bag liner
Person lying on a white surface in a sleeping bag liner with their arms and legs sticking out through openings
Person holding a sleeping bag liner in a cylindrical storage case
Person setting up a sleeping bag liner in a hiking tent. Driftwood fire and canoe in background
Yellow sleeping bag liner with a drawcord footbox
Black sleeping bag liner with a sewn foot box
A person demonstrating the use of a drawcord to seal the footbox of a sleeping bag liner
Close up of the drawcord on the hood of a sleeping bag line
Close up of a drawcord footbox on a sleeping bag liner
Person lying on a white surface in a sleeping bag liner with their arms and legs sticking out through openings
Person holding a sleeping bag liner in a cylindrical storage case
Person setting up a sleeping bag liner in a hiking tent. Driftwood fire and canoe in background
Sea to Summit

Sea To Summit Reactor Sleeping Bag Liner

$109.99 $76.99 Save $33.00
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Tax included. Shipping calculated at checkout.
Size

Need your summer sleeping bag to cut it on a shoulder season trip?

Elevate your sleeping bag's thermal efficiency with the Sea To Summit Reactor Liner. Designed with Thermolite® Pro fabric featuring heat-reflecting ceramic technology and sustainable EcoMade fibres, this liner boosts the warmth of your sleeping bag when things get frosty. The flexible stretch-knit construction is comfortable in any sleeping bag, and the drawcord footbox option gives you the freedom to move around camp without crawling out of your nice warm liner.

Features

  • Thermal boost to retain heat and warmth, as the core of your sleep system the Reactor liner extends the performance of your sleeping bag and sleeping mat in colder conditions.
  • Thermolite® Pro technology using knitted, hollow-core fibres and absorbing infrared ceramic pigments to reflect your body's heat back to the wearer for enhanced warmth and comfort.
  • Drawcord footbox can be opened or closed for optimal comfort and integrates perfectly with the footbox of our Free-Flow Zip system in select Sea to Summit sleeping bags.
  • HeiQ Fresh odour control technology helps keep the liner fresh even after extended use.
  • Knitted fabric provides incredible stretch and freedom of movement in this mummy-shaped liner and works seamlessly with sleeping bags of any shape.
  • Sea to Summit Guarantee is offered for the Lifetime of this product.

Specifications


 Compact Mummy (drawcord)
 Mummy (drawcord) Mummy
Weight 268g 284g 265g
Dimensions 198 x 80 cm 216 x 80 cm 206 x 80 cm
Packed Size 15 x 7 x 11 cm 15 x 7 x 11 cm 15 x 7 x 11 cm
Max User Height 177cm 198cm 198cm

The standard local delivery time from our store in Melbourne for orders placed before noon is 2–7 business days via Australia Post standard delivery. Express Post is also available. Please see our Shipping page for more details. International Orders are subject to flight availability.

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Pairs well with...

Sea To Summit

Sea to Summit invent gear that enables freedom and self-reliance in an environment.

They take their adventure and gear seriously, but Aussie humour lightens any journey. Approaching life with directness, candour and integrity, doing what they know is right to build products and relationships that last.

As a young outdoor enthusiast, Roland Tyson (founder of Sea To Summit) had a passion and a talent for creating cutting-edge outdoor equipment for his own adventurers, and soon for other Australian adventurers. By 1991, after outfitting an unusual first ascent of Mt. Everest (a 1126+ kilometre, 8848 metres in elevation trek from sea level to a solo summit), Sea to Summit was born.

Sea to Summit are surfers, hikers, bikers, paddlers, sailors—lovers of outdoor spaces and are inspired by the freedom those spaces provide. Stewardship of the natural environment is as important to them as the creation of new products, and they purposefully make gear that lasts and can be easily repaired.

Sea to Summit invent gear that enables freedom and self-reliance in any environment—and believe it is imperative that same environment be around for future generations of adventurers to enjoy. The meaningful steps they are making towards improving their environmental and social impact, and the commitment to being transparent about their progress is the only way to guarantee they do their part in making that happen.

In 2022, Sea to Summit successfully transitioned from an owner-modelled business to a solid private equity backed business. The certified B-Corporation and Australian investment firm, Five V Capital, signed an agreement with Sea to Summit to become the majority shareholder. This marks an important milestone in Sea to Summit’s history as the brand becomes a global player in the outdoor industry, continuing to grow and expand.

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