Vapor Barrier Liner extends the temperature comfort range of your bag by 10° to 15°. By keeping your sleeping perspiration next to your body the effective warmth of your sleeping bag will be boosted 10-15 degrees. It is made of a waterproof, coated nylon to keep heat in and reduce evaporative heat loss. If you do longer deep winter trips a vapor barrier is a must.
- Vapor barrier keeps heat in.
- Waterproof, coated nylon keeps moisture out.
- Extends the temperature range of your sleeping bag.
- Size: 6'9" x 2'5" x 1'2"
- Weight 11 oz.
- Stuff Size: 12"x 8".
- Made in the USA.