Sea to Summit Reactor Fleece Liner Mummy CLIMBINGSHOES The asymmetric shape means the

The asymmetric shape means the apex of the pyramid is closer to the head end for more usable headroom

use the fold-down secondary zipper to get some air

frigid days in mind

The Lightweight Compression Sack is the perfect solution for space-saving gear storage and organized packing

Sea to Summit Reactor Fleece Liner Mummy CLIMBINGSHOES The asymmetric shape means theThe Reactor Fleece Liner built from hollow core Thermolite Pro fibres used in a grid pattern to deliver Sea to Summit's warmest sleeping bag liner and the core of any quality cold weather sleep system. You can regulate your temperature using the shoulder zippers and drawcord footbox, which also align perfectly with the Free Flow Zip system of Sea to Summit sleeping bags. The versatile Reactor Fleece Liner delivers comfort across multiple seasons or