Big Agnes Women's Sidewinder SL 20 terramar A contoured EVA midsole gives

A contoured EVA midsole gives you arch support that most sandals lack

accurate measuring

Livable: Unique pole geometry optimizes headroom and fits two mats

Insulated tube and bite valve cover

Big Agnes Women's Sidewinder SL 20 terramar A contoured EVA midsole givesSpecifically designed for those who sleep on their sides, the patent pending Sidewinder Series was engineered to ensure warmth, comfort, and ease of use no matter which side you're on. Constructed with features you expect from a traditional mummy bag with additional body mapped insulation to optimize warmth where you need it and minimize pressure points and other side effects. The Sidewinder SL is a side sleepers dream bag with technical features that