Model: 50248 Sizes: S, M, L, XL, XXL Fit: next to skin Weight: 10.4 oz Berry Amendment Compliant: 100% Made in U.S.A. For active or static winter activities, stay warm, dry, and comfortable with the added benefit of flame resistance built in. Feels just like your favorite performance thermal top. Beyond flame resistance, you can count on our FR bottoms to meet your base layer requirements-superb softness, comfort, and moisture wicking. Its material, a combination of 48% FR Rayon, 48% wool, and 4% Lycra, wicks moisture, does not retain body odor, and provides superior FR protection. FEATURES 6.2 oz/square yard fabric weight Antimicrobial treatment combined with wool to resist odors Passes ASTM 6413; No Melt, No Drip Gusseted crotch for full range of motion Curved leg seams for ergonomic fit Approved by the U.S. Air Force for use with FR uniforms MATERIALS 48% FR Rayon, 48% wool, 4% Lycra blend CARE Machine wash in cold water Tumble dry on medium Do not use fabric softener Do not iron