Stay cool and comfortable in our updated Sunstopper base layer for women. With breathable mesh panels and advanced cooling technology, this shirt offers UPF 50+ sun protection and odor resistance. Designed with AriatTEK® and ClimateTEK™ for optimal comfort in any weather. Sporty color blocking and a mock collar with ¼ zip add a touch of style. Made from a lightweight recycled polyester/spandex blend with sustainable FreshTEK™ technology.