You havent felt comfort until youve worn these lightweight thermals! Silky soft Thermaluxetm is an excellent base layer thats breathable and moisture wicking, drying 28% faster than cotton. Leggings have no-chafe flat seams and fit comfortably under riding breeches. 4-way stretch and body-contouring panels flatter curves. 94% polyester, 6% spandex.