The COCOON Vapor Barrier Mummy Liner is an ultralight technical sleeping bag liner designed for long winter expeditions and extremely cold conditions. Its 100% non-breathable 15 Denier Ripstop Nylon shell with an internal TPU laminate minimizes evaporative heat loss, reduces dehydration and helps maintain your sleeping bag’s insulation by preventing body moisture from entering the filling.

It can also be used as an emergency bivy when extra protection is needed.

Key Features

• Designed for long winter trips and extremely cold conditions
• Minimizes evaporative heat loss and reduces dehydration
• Helps preserve the insulation and loft of your sleeping bag
• 100% non-breathable waterproof TPU laminate
• Drawstring hood
• Fully taped seams
• Integrated stuff sack sewn at chest height
• Hanging loops at the hood and foot end for drying
• Can also be used as an emergency bivy

Materials

100% 15 Denier Ripstop Nylon with an internal waterproof TPU laminate.

Care

Machine wash at 30 °C on a gentle cycle. Do not bleach. Do not tumble dry. Do not iron.