Form fitting, close fit for optimum heat transfer to body. Made of Spandex fabric allowing full range of movement for any activity and fits easily under your outer garments. Our Pant Liners are not Unisex. The Men's and Women's Pants Liners are sized differently. And why not, since men and women are built differently.
Designed for 1 person to variably control heat separately to multiple garments such as a jacket liner and gloves. Can also be used to balance the heat between any set of heated garments, such as jacket liner on 1 control and gloves, pants and socks on the other.