Because cold weather can't keep us out of the backcountry, we pack the Lamina Sleeping Bag for thoughtful, all-season warmth. The Lamina line of sleeping bags is strategically crafted from layered, synthetic insulation that concentrates warmth to eliminate cold spots. This cozy mummy bag is crafted with a tough nyLolen ripstop that resists punctures and repels moisture, so we stay warm and comfy through light snow and early morning dew.