The FOX MTB Jersey Defend is expertly crafted by FOX RACING using 100% recycled polyester for both its body and underarm mesh. Offering the durability you need in the mountains, this short-sleeve jersey excels on the roughest trails. Its strategically placed, abrasion-resistant zones protect you and the fabric from wear and tear caused by tough trail conditions. The TruDri™ fabric wicks away moisture, providing dry comfort, while the mesh panels allow for targeted cooling.