HEATTECH Ultra Warm Crew Neck 9-Sleeve Ultra Warm Size: XS Color: Gray, Black Set of 2 No stains or fading, in good condition. ⚠️No discounts & no individual sales⚠️ Product Description Comfortable features such as heat generation, heat retention, moisture retention, and moisture absorption/release are added. Material. Set. ・Material with stretch and excellent shape retention. ・Designed with short 9-sleeves to prevent them from peeking out from the sleeve ends. ・Recommended as cold weather innerwear for extremely cold regions. Material 47% Acrylic, 26% Polyester, 20% Rayon, 7% Polyurethane