It’s frustrating to get your sleeping sack wet with condensation when you hike. Long distance hikes have probably experienced sleeping bags that become less warm due to moisture.
I was inspired by the quilt sleeping bag and bivy, so I covering the sleeping sack with a Tyvek fabric. It is lightweight, waterproof and air breathable. Full closure of the foot can better protect the foot sleeping bag, also has the function of positioning. The upper part is open designed which only needs to be covered on the sleeping bag. I found it could promote the insulation of your sleeping system.
However, Tyevk has limited waterproof function, using it without tent is NOT recommended!
It’s main function is to prevent the condensation inside the tent from entering the sleeping bag, rather than to prevent rain and water splashing!
Weight:200g / 0.44lb / 7.05oz
Dimensions:230cm x 90cm / 90.55in x 35.43in
Receive the size: 16cm x 8.5cm / 6.30in x 3.35in
-As the fabric characteristics and measurement methods are different it may be purely in error with the actual object.
-It is recommended to use a soft cloth dampened with water or detergent for cleaning.