It's not just a riding shirt, The Scorpion EXO's Abrams shirt finds the sweet spot between a lightweight and the comfortable shirt, with the abrasion resistance, external polyester reinforcements and internal Rhino-Mesh lining that a jacket has to offer. The Abrams Riding Shirt will keep you cool while protecting you as you travel to your destination.; Made from mid-weight cotton materials Reinforced with a Rhino-Mesh lining 600 Denair polyester reinforcements for additional resistance at your joints Internal pockets for optional Sas-Tec flex armor Adjustable underarm vents YKK zippers Integrated action-back panels for a more comfortable feel while allowing for increased mobility Forearm and bicep snap adjusters for a perfect fit 5 external pockets Conceal carry pocket Snap flap with hidden YKK zipper for main closure 1 year warranty