Dont let rain ruin your fast-and-light backpacking trip. MontBells Breeze Dry-Tec U.L. Sleeping Bag Cover allows you to sleep dry inside of your tent or out. Extremely breathable Dry-Tec material and fully taped seams prevent internal condensation, while at the same time keeping rain, morning dew, and other sneaky water droplets where they belongoff of your mummy bag. In the true spirit of ultra light camping, the Breeze Dry-Tec U.L. weighs a measly 6.3oz, riding virtually unnoticed in a corner of your pack.