The ultralight compression dry bag is also available with valve and straps for maximum compression. It is particularly suited for compressing sleeping bags. Key Features:BucklesRobust fabric at base: abrasion and tear resistantBroad base loop for easy unpacking and fixingAdvice:Closure of compression dry bags must be rolled at least 5-6 times. Please add 15-20 cm/5-8 in. for the total length.