Sea to Summit (STS) has been at the forefront of sleep system development for decades now ... The XPEL valve is brilliant, providing full control over inflation/deflation; the side-loading sack allows ...

Enter the Sea to Summit Ascent, the brand’s attempt to add layers of versatility to your sleep system. Comprising 100% Ultra-Dry Down 750 ... there’s the storage sack: this is more of a ...

Sea to Summit isn't stopping at sleep. The brand is expanding its range of comfort-focused gear with the Big River Dry Backpack, now available in a 30L volume. This waterproof storage solution ...

the Sea to Summit designers have taken the obvious choice and gone for a down filling, in theory offering maximum warmth for minimum weight. The down is Ultra-dry treated Responsible Down Standard ...