Milwaukee, 2XL Black Short Sleeve WORKSKIN Lightweight Performance Shirt. This Performance Shirt is BUILT TO FIGHT SWEAT. The WORKSKIN Lightweight Performance Short Sleeve Shirt is designed for tradesmen who need their next-to-skin layer to dry fast, keep them cool, and protect them from harmful UV rays. Get a work shirt that matches your level of performance every day with a Milwaukee® WORKSKIN. These high-performance work shirts are made from moisture-wicking fabric that helps you stay dry, while the 100% polyester material dries fast and resists wrinkles, unlike standard cotton base layers. The relaxed fit and raglan sleeves allow you to move freely to accomplish any task for comfortable all day wear.