Mountain Hardwear Unisex Lamina Eco AF 15F/-9C Sleeping BagMountain Hardwear Unisex Lamina Eco AF 15F 9C Sleeping Bag We set out to prove that sustainability is about opportunity, not sacrifice. But there's more to this sleeping bag than a little green here and there. In fact, there's no color at all. The Lamina Eco AF is undyed to reduce our water footprint. And on top of that, it's made with a recycled shell, lining, insulation, and trims. Lining Material: 20D Recycled Nylon Ripstop. 100% Nylon Body