Packs remarkably small into a built-in storage bag that won't get lost. The 7.6 cm I-baffle air cell adds a lightweight structure that cradles the head and eliminates any "balloon" feeling. The wider dimensions add more comfort on the trails, with a negligible weight increase. 100% post-consumer recycled zero fiber insulation creates a plush and fluffy feel. Removable recycled fabric cover, machine washable, super soft to touch.