The Expander liner is made from a premium stretch knit poly-cotton, making it super stretchy and even warmer than a standard cotton weave liner. The anti-microbial treatment keeps microbial life, thus bad odors, at bay which also helps prolong the life of your liner and sleeping bag; it won't wash out of the liner and does not use nano-sized particles.
Size Variation: Standard Rectangular Length: 73 in/ Width: 36 in / Weight: 11 oz/310g
Premium stretch knit fabric that can expand twice its width
Luxuriously comfortable to sleep in
Extends the life of a sleeping bag by keeping it clean
Anti-microbial protection keeps liner fresh, hygienic and odor-free.