Half Sleeve Compression T-Shirt - Moisture-Wicking Performance is designed for reliable performance in training, practice, and team wear. 84% polyester/16% elastane Xtreme compression cloth with Moisture Wicking Performance Fabric technology. Key features include 92 polyester/8% elastane stretch mesh inserts on center back and underarm; 4-way stretch properties allow for increased mobility; Moisture Wicking Performance Fabric Technology is engineered to distribute moisture quickly throughout the garment. As the moisture spreads it will dry faster to keep you comfortable; Garment protects against the sun with 50+ UPF; Wicks moisture; Tag-free label.