Sea to Summit Expander Liner Standard (Rectangular) Navy

The Expander liner is made from a premium stretch poly-cotton knit, making it super stretchy and even warmer than a standard cotton weave liner. The stretch properties allow the Expander to move with you as you sleep, vastly increasing comfort and minimizing tangles. The anti-microbial treatment keeps you at bay and prolongs the life of your liner and sleeping bag. The anti-microbial treatment will not wash out of the liner, and does not use nano-sized particles. The treatment is approved for use by EPA (USA) and is used in many hospitals.