The MIER UV Running Tank is the perfect companion for your outdoor activities. Made from 100% polyester, this tank top is lightweight, breathable, and incredibly comfortable. It features UV sun protection with UPF 50+, shielding your skin from harmful rays and reducing the risk of sunburn and long-term damage. The ergonomic design includes flat lock seams for a smooth feel against your skin and a collar design with an easy tear away tag to prevent chafing. With a crew neckline and sleeveless design, you can move freely and enjoy a full range of motion during your workouts. Whether you're running, yoga, hiking, or fishing, this tank is a must-have. It is easy to care for, can be hand washed or machine washed with cold water without shrinking or becoming see-through. Plus, the improved cut, especially in the armholes, ensures a comfortable and perfect fit. Trust MIER for all your active wear needs with their Sleeveless Shirts 2.0. Description by ChatGPT.