US Army ECWCS Gen III Level 1 Polartec Base Layer Set Tan Medium Regular Peckham Official US Army Issue ECWCS Gen III Level 1 base layer set includes a long-sleeve undershirt and matching drawers. Engineered by Peckham Inc. using Polartec fabric, this lightweight cold weather system is designed for moisture management and thermal insulation in varied climates. The top features thumbhole cuffs for secure layering and a drop tail hem, while the bottoms offer a comfortable elastic waistband and functional fly. Made in the USA, this high-performance synthetic knit provides a streamlined fit ideal for outdoor activities, tactical use, or everyday winter layering. Measurements: • Top Pit to Pit: 21" • Top Length: 29" • Bottom Waist: 14" (28" doubled) • Bottom Inseam: 27" #Neutral #Vintage #Travel