Ol' Tom Men's Mossy Oak Greenleaf Mesh Back Flyweight 2.0 Hunting Shirt - The Ol’ Tom Mesh Back Flyweight Shirt with spine pad is a technical version of a classic button-down hunting shirt. The spine pad has been reduced in size to be located only on the portion of your back that rest against the tree to increase the breathability and comfort of this shirt. UPF 50+ sun protection Mesh Back panel Two large chest pockets with button Relaxed comfort fit with button up design Removable spine pad only on the portion of your back that rests against the tree 100% Polyester Style: OT1000