The Ol' Tom Men's Mesh Back Flyweight 2.0 Shirt is both lightweight and durable. The flyweight material is highly breathable and quick drying. The Ol' Tom Mesh Back Flyweight Shirt features a removable spine pad and UPF 50+ sun protection to keep you comfortable and cool. Features100% Polyester UPF 50+ Sun Protection Removable Upper Spine Pad Mesh Back panel 2 Large chest pockets with button Relaxed comfort fit