-AFI 36-2903 & AR 670-1 FULLY COMPLIANT to wear with Scorpion OCP (Operational Camouflage Pattern) Uniforms and US Army MultiCam suits. -Pre Shrunk 4.6 oz 60% Ring Spun Combed Cotton / 40% Polyester -UltraSoft and comfy all day -High Quality Fabric -Great fit, neck line doesn't lose its shape -Double Stitching