Reactor Fleeceweight Liner Sea to Summit Sleeping Bag Liners

Sea to Summit

Reactor Fleeceweight Liner

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Cold-weather warmth without the weight penalty

When you're winter camping or heading into properly cold conditions, the Reactor Fleeceweight Liner is what you want between you and your sleeping bag. Thermolite All Season hollow-core fibres woven into a grid fleece can add up to 8°C to your sleep system – enough to turn a chilly night into a comfortable one, without needing to splash out on an expensive winter-weight down bag. The blend of Thermolite EcoMade and recycled polyester feels warmer than pure synthetic fleece without the clammy feeling you sometimes get. Armholes now have zips instead of snaps, which is better for keeping draughts out when it's properly cold. At 400g for the Regular, it's the heaviest of the Reactor range, but that's missing the point – you're carrying this for camps where warmth matters more than shaving grams. And it’s machine washable with HeiQ Fresh treatment, keeping the inside of your sleeping bag cleaner for longer.

FEATURES
SPECS
ECO CREDENTIALS
THE BRAND

- Thermolite All Season and recycled polyester grid fleece construction
- Adds up to 8°C warmth for cold-weather camping
- Zippered armholes provide better draft protection than snap closures
- Technical hood and Free Flow compatible design
- Easy to clean and extends sleeping bag lifespan
- HeiQ Fresh odour control treatment
- Available in Short (170cm), Regular (185cm) and Long (198cm)
- Made from Thermolite EcoMade recycled materials
Size Max User Height Weight

Short 170cm 365g

Regular 185cm 400g

Long 198cm 420g
- Recycled Materials - made from recycled materials
- Sustainability through Longevity - limited lifetime warranty guaranteeing freedom from material and manufacturing defects
What is it that attracts us to the idea of adventure? For Sea to Summit, it’s about freedom and self-reliance – the ability not just to survive, but to thrive in any environment. But although the brand takes its gear seriously, it does so with trademark Aussie humour and blunt, no bullsh*t candour. That’s the way it’s always been, ever since founder Roland Tyson made his first outdoor gear on an old industrial sewing machine in his childhood bedroom back in 1983, at the age of 17. Soon he was designing and manufacturing equipment for other Australian adventurers – and in 1991, he outfitted an unusual first ascent of Everest, in the form of a 1,126 kilometre journey from sea level to the mountain’s 8,848-metre summit. The name Sea to Summit was born.

In 1993, Roland was joined by Penny Sanderson, another Aussie explorer and innovator. Their designs were honed on their adventures, as they spent months climbing, sailing, trekking, overlanding and biking. Nearly thirty years later, Sea to Summit is still 100% Aussie owned and operated, and still putting painstakingly designed gear into the hands of customers worldwide.