Stay cool and comfortable with the ACH Tech T-Shirt. Crafted from 3.5 oz., 100% polyester interlock, this shirt is designed to wick away moisture and provide UV 40+ protection for maximum performance. Its team fit, combined with cationic dyes, ensures superior brightness and long-lasting color. As we transition from heat-seal labels to tear-away labels, inventory may vary, but you can always expect the same high quality and comfort.