Whether you're heading out for a ride or running errands, this lightweight baselayer keeps up. The recycled, performance knit fabric has beautiful mesh on the sleeves and side panels for unrivaled breathability when your ride heats up. Breathe 14 Zip Baselayer Product Features : AriatTEK® is designed for optimal comfort in any weather, with built-in performance features that adapt to changing conditionsClimateTEK™ dynamically responds to your body temperature to keep you cool when things heat upFreshTEK™ odor control helps keep you feeling fresh through long hours of wear, Perforated panels enhance airflow to help keep you cool and comfortable, Stand collar with quarter-zip front Women's Breathe 14 Zip Baselayer in Black, Size: Large by Ariat