Our Durastretch work shirts deliver a one-two powerful combo of strength and flexibility. Each shirt is lightweight, sturdy, and engineered for all-day comfort that moves with you. FR Solid Twill DuraStretch Work Shirt Product Features : Greater Arm Mobility™ lets you move freelySun Protection Fabric™ gives you UV coverage, Adjustable cuffsLeft chest pocketButton-front closure, Hidden pen slot in left pocket Men's Flame-Resistant Solid Twill DuraStretch Work Shirt in Dark Navy, Size: MT by Ariat