Whether you`re camped under the stars or in a hostel of questionable cleanliness, pull out the Sea To Summit Premium Silk/Cotton Sleeping Bag Liner and get a luxurious combination of soft comfort and moisture wicking performance. This machine-washable liner improves the thermal efficiency of your sleeping bag or protects you from sheets that haven`t been changed in three weeks. When it`s time to hit the trail or the road, the liner disappears into the included stuff sack and slides right into your pack.