Extremely lightweight and roomy sleep sack or sleeping bag liner for hotels, youth hostels, alpine huts, boats, planes and trains.Features: side opening with Velcro closurepocket for pillow double stitched with reinforced gussets Egyptian cotton is a rare, long fibered cotton that is spun into a fine yarn. The result is a very lightweight and soft, yet durable fabric. COCOON TravelSheets made of Egyptian cotton are substantially lighter and more compact than those of regular cotton. A great compromise between regular cotton and silk! Machine wash (40°C). Do not bleach. Dry cleaning, tumble drying and ironing are possible. Wash colors separately.