SJ510X 3 SJ510X 3 Quilted Reversible Jacket with Zip Off Sleeves X Back Size:3X insulation and superior heat protection Clute Hazardous Location insulation and superior heat protection Clute cut provides a roomy fit Straight thumb increases comfort in closed fisted work Nap out finish for heat resistance Knuckle strap for extra protection Band Top cuff helps protect wrist area and allows for easy on and off Starched gauntlet cuff for added forearm protection Equipped with high fidelity speakers Sleeves can be removed to create an ANSI Type R Class 2 vest The hi vis outer shell is made of a heavy duty coated polyester and has 2" silver reflective tape with contrasting trim in an X Back pattern for additional visibility