NWT Size Large Desert Sand color Lightweight Flame Resistant Long Sleeve Crew - FR Phase 1 FR Phase 1 is one of the lightest most durable FR fabrics on the market. FR Phase 1 is a lightweight patented blend of Modacrylic & FR Rayon, inherent at the yarn level, providing FR protection for the life of the garment. Superior Acclimate® Dry Moisture Management wicks sweat away from the body and dries rapidly. AG47® Silver Anti-Microbial fights and eliminates harmful bacteria from your sweat leaving you odor free. Clean Seam® provides unparalleled next-to-skin comfort. Gone are the days of uncomfortable FR base layers. Build your base with the best FR base layers on the market and worry less about your base layers and more about the mission at hand! Gear Specs Fabric: a Patented Blend of Modacrylic & FR Rayon Inherently No Melt/No Drip At Yarn Level - FR Protection For Life Of Garment ASTM D6413 No Melt/No Drip FR Standard Weight: 4.8 oz./sq. yd. / 136 grams Sizing: Men's Sizing/Fit Fit: Regular/Relaxed Fit Features Acclimate® Dry Moisture Management (Superior Wicking / Drying) Ag47® Anti-Microbial / Anti-Odor Protection Rolled Shoulders - Removes Seam Off Shoulder Eliminating Plate Carrier/Pack Friction/Irritation Under Arm Gussets - Increased Mobility / Reduced Irritation Extra Body Length - Stays Tucked In Clean Seam® Next-To-Skin Comfort Superior Hand/Feel UPF UV Protection - 25+ Durable, Breathable & Won’t Shrink