[type b]
[type a]
It is frustrating that the sleeping bag gets wet due to condensation while hiking. When you are traveling long distances, you may find that moisture doesnt feel much warmth. I tried to solve this problem by covering a sleeping bag with TYVEK as it is waterproof and breathable, but it is very light and easy to change shape. This sleeping bag is inspired by a sleeping bag and has full coverage of the foot, so you can keep your sleeping bag well protected and repositionable. The open design on the top just needs to cover the sleeping bag, and it doesnt feel too tight. It is waterproof, yet has a certain amount of warming. However, due to TYVEK itself waterproof and design construction, it is not recommended to be used alone.