Rain or shine, you'll be warm and rested in this sleeping bag. The zipper and shoulder draft tubes, thermal enhancing, double-layer offset stitching, and down fill work together so the warmth stays in. You'll forget you're camping in this cozy sleeping bag with soft poly-flannel lining. There's plenty of room to spread out. The half-circle mummy style hood keeps you warm and your pillow clean. Unzips on each side for airflow and easy access.