Ariat Women's Sunstopper 3.0 1/4 Zip BaselayerA sunshirt like no other Beloved by riders everywhere, our Sunstopper baselayers deliver more than UPF protection Innovated with cooling, moisture wicking, and odor fighting technologies, they're crafted from a soft fabric that keeps you looking tidy from sunup to sundown We even added mesh at each underarm for maximum breathability without sacrificing the coverage you need on warm, sunny days AriatTEK is designed for optimal comfort in any weather