Primaloft Active Evolve Boxfoot Liner

The Evolve Liner combines soft PrimaLoft® Active Evolve fleece with generous stretch for a comfortable night in the wild. Lightweight and highly breathable, it adds warmth to your sleeping bag while allowing you to move freely as you sleep. A shaped footbox gives your feet space to rest naturally, while flatlock seams sit smoothly against your skin. Using a liner also helps keep dirt and body oils out of your sleeping bag, protecting its performance and reducing the need for washing.

Available in a mummy shape designed to fit your sleeping bag, with or without a hood, in Standard and Extra Large sizes. The hooded version features a contoured hood for comfortable coverage around your head, with a one-handed drawcord adjustment. The hoodless version has a simple open top to keep weight down.