STORAGE: Interior fabric loops for sleeping bag liners Exterior loops for hang drying or storage Mesh storage sack & polyester ripstop stuff sack DESIGN & DETAILS: Requires rectangular pad FireLine™ ECO Synthetic Insulation - 100% post-consumer recycled polyester Nylon ripstop shell fabric with a water repellent finish Soft, cozy polyester lining Lightweight synthetic fill Big Agnes system bags designed to excel in all conditions Offers roomy sleeping spaces for those who aren't willing to sacrifice comfort Streamlined silhouette for increased thermal efficiency Flex Pad Sleeve features stretch construction that accommodates multiple pad widths, and easily connects your bag to your pad Free range hood gives you the freedom to lift your head while the jacket-style hood opening contours to the shape of your face for a comfortable, snug fit Internal hood drawcord gives you a secure, cozy fit when cinched Free range footbox creates wiggle room for your feet Anti-snag zipper for a smooth, quick zip Low-profile cordlock lets you un-cinch the hood with one hand Zipper Garage Mate together left and right zip bags No-draft collar, no-draft wedge, no-draft zipper