All Massif Products Are GSA Approved, US Mil-Spec, 100% NEW, First Quality, NO Irregulars Or Seconds, Berry Compliant, & 100% MADE IN USA! Features Non flame-resistant construction with proprietary 4-way stretch MassifA(R) fabrics Lightweight, ultra-breathable and wicking torso fabric Durable, breathable sleeve fabric Flat-seam construction minimizes chafing under body armor Low-profile, zippered shoulder pockets Elbow pads with SuperFabricA(R) offer extra abrasion resistance Forearm pockets for easy access Adjustable wrist cuffs Tiger Pattern Men's Sizing Information Inches Size Chart XSSMLXLXXLXXXL NECK 13-13.5 14-14.5 15-15.5 16-16.5 17-17.5 18-18.5 19-19.5 CHEST 30-33 34-37 38-41 42-45 46-49 50-53 54-57 CENTERBACK ARM Short 29.5-30.5 30.5-31.5 31.5-32 32-33 33-33.5 33.5-34.5 34.5-35 CENTERBACK ARM Regular 31-32 32-33 33-33.5 33.5-34.5 34.5-35 35-36 36-36.5 CENTERBACK ARM Long 32.5-33.5 33.5-34.5 34.5-35 35-36 36-36.5 36.5-37.5 37.5-38 WAIST 25-27 28-31 32-35 36-39 40-44 45-49 50-56 INSEAM Short 30 30 30 30 30 30 30 INSEAM Regular 32 32 32 32 32 32 32 INSEAM Long 34 34 34 34 34 34 34