Your go-to for base layer performance tops, Micro-Elite Chamois is synonymous with the Hot Chillys brand. The fabric's intimate blend of enhanced polyester and spandex fibers are made with exceptional stretch-ability, and feature Bio-Silver anti-microbial silver properties that inhibit the growth of odor-causing bacteria. The result is a highly technical, women's quarter zip pullover, thermal underwear that'll keep you warm for years to come.