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Sleeping bag season ratings are notoriously optimistic – what some brands call "comfortable" usually means "survivable if you're wearing every layer you own." The Reactor Lightweight Liner sorts that out by adding up to 4°C of warmth through Thermolite Pro fabric that traps and reflects body heat using Far Infrared Technology. The stretch-knit construction means you can thrash about all night without getting tangled, and the armholes with snap closures let you use it as a standalone sleep layer when it's too warm for a bag. At 255g for the Regular, it's light enough for bikepacking or thru-hiking. Bonus: unlike your sleeping bag, you can chuck this in the wash regularly without worrying about wrecking the insulation, which means your expensive down bag stays cleaner and lasts longer. HeiQ Fresh treatment keeps it from going manky between washes.
| Size | Max User Height | Weight |
|---|---|---|
| Short | 170cm | 235g |
| Regular | 185cm | 255g |
| Long | 198cm | 260g |
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.
Sleeping bag season ratings are notoriously optimistic – what some brands call "comfortable" usually means "survivable if you're wearing every layer you own." The Reactor Lightweight Liner sorts that out by adding up to 4°C of warmth through Thermolite Pro fabric that traps and reflects body heat using Far Infrared Technology. The stretch-knit construction means you can thrash about all night without getting tangled, and the armholes with snap closures let you use it as a standalone sleep layer when it's too warm for a bag. At 255g for the Regular, it's light enough for bikepacking or thru-hiking. Bonus: unlike your sleeping bag, you can chuck this in the wash regularly without worrying about wrecking the insulation, which means your expensive down bag stays cleaner and lasts longer. HeiQ Fresh treatment keeps it from going manky between washes.
| Size | Max User Height | Weight |
|---|---|---|
| Short | 170cm | 235g |
| Regular | 185cm | 255g |
| Long | 198cm | 260g |
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.
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