Sleeping Bag Liner, 3F UL GEAR Tyvek Sleeping Bag Cover Liner Waterproof Bivy Bag Camping Bags Ventilate Moisture-Proof Warming Every Dirty Inner Liner BIVY Sack (B Type)

It's frustrating to get your sleeping bag wet with condensation when you hike,People who have traveled long distances have probably experienced sleeping bags that become less warm due to moisture. I tried to solve this problem by covering the sleeping bag with a tyvek,Because tyvek is waterproof and breathable,But because tyvek is so lightweight and easy to shift, it was inspired by the bottomless sleeping bag,Full closure of the foot can better protect the foot sleeping bag, also has the function of positioning,The upper part of the open design only needs to be covered on the sleeping bag, no sense of restraint,It is waterproof while also has a certain heating effect. However, due to the waterproofing property of tyvek itself and the design structure of this product, it is not recommended to use it alone!

• bivy sack
• Imported
• Type A,Size: 180cm*80cm, material: DuPont TYVEK, Receive the size: 16cm*8.5cm, Weight: 130g
• Type B,Size: 230cm*90cm ,material: DuPont TYVEK, Receive the size: 16cm*8.5cm ,Weight: 200g
• Product features: Super light , Prevent condensation , convenient ,Ventilate , Every dirty , Heat preservation
• Notice: Use with a sleeping bag, not alone! It is recommended to be used with tents or tarps! Its main function is to prevent the condensation inside the tent from entering the sleeping bag, rather than to prevent rain and water splashing!
• Note: This is just an ultra-light sleeping bag set, not including sleeping bags! !