Soft and warm 2-ply polyester twill bonded to brushed fleece with dual chest and hand pockets. Soft and Warm 2-Ply Polyester Twill Bonded to Brushed Fleece Easy Snap Front Placket Dual Chest and Hand Pockets Sleeve Placket Specs 100% Polyester Machine wash cold with like colors, Only non-chlorine bleach when needed, Tumble dry low, Remove promptly, Cool iron if needed Sizing and Fit Model is 61 and 215lbs. He is wearing size Large. Fits true size. Here in the office we usually wear one size larger than we do in the guide shirts to allow for layering.