New Fabric Alert: We've got you covered with our sun safe and ultra-soft Soluxe Bamboo fabric, blocking 98% of UV rays.Trade in your old tee! The Men's Grey Bamboo Long Sleeve T-Shirt makes staying sun safe simple with our soft, lightweight and UPF 50+ bamboo fabric. The hidden thumbholes inside the sleeve provide added coverage for your hands. This light grey top features a classic cut that you can easily pair with your favorite jeans, pants or shorts.