Let the expert gear testers at Backpacker help you find the right lightweight personal bivy sack for your next trip, whether you're looking for a minimalist summer sack or a lightweight but warm winter bivy.
Cross a super-warm bag and a weatherproof bivy and you get the Wraith.
Using a waterproof and breathable fabric, the Escape Bivvy provides comfort and insulation.
This bivy stuffs smaller than a soda can.
A light emergency bivvy sack