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 stretch properties allow the Expander to move with you as you sleep, vastly increasing comfort and minimising tangles,
The anti-microbial treatment keeps bacteria at bay as well as prolonging the life of your liner and sleeping bag,
The anti-microbial treatment won’t wash out of the liner, and does not use nano-sized particles,
The treatment is approved for use by the EPA (USA) and is used in many