Feathered Friends - VBL, red, regular

The VBL is designed to keep a down sleeping bag dry on multi-day trips by preventing body perspiration (up to half a cup a night) from getting trapped in the down.

The VBL will enhance a sleeping system in a number of ways:
1. It reduces dehydration by lowering an individual’s perspiration rate once skin senses that it is in a humid environment.
2. It adds warmth to a sleeping bag by trapping an extra air layer and reducing evaporated heat loss (up to 5º).

In dry conditions the heat generated by the body will drive moisture through the down. However, in extremely cold or humid conditions, some of this moisture may become trapped in the down and freeze.
By using a VBL the moisture is contained and can be removed by turning the VBL inside out and shaking off the flakes as the moisture freezes.
The VBL is made from ultra-light Silcoat nylon, has a cordlock to fully contain moisture and reduce liner slippage and has a large foot box ensuring a non-constricting fit.

+ Siliconized Nylon (VBL - Material)
+ Weight: 6.0 (oz)
+ Color: red
+ Size regular fits to 178cm