Mummy shape for warmth and thermal efficiency

Insulated sculpted hood provides secure fit and more warmth

Boxed foot construction for warmth and comfortable sleep

Insulated neck yolk to help trap heat

Suresoft brushed polyester lining is warm and comfortable

Drawcord at shoulder – use it to trap heat in and keep the cold out

2-way nylon coil zipper allows for venting; reversible slider with hi visibility fabric

Anti-snag zipper tape, and insulated draft tube behind zipper

4 fabric loops allow for attached cord to hold sleeping pad in place

Inside zipper pocket to store small flashlight, smart phone, etc.

Compression carry bag with 2 YKK quick release buckles