HEAT HOLDERS - Mens Winter Warm Cotton Thermal Underwear Bottoms Long Johns (X-Large (39-41" Waist), Charcoal) (UK, Alpha, M, Regular, Regular, White)

THERMAL WARMTH - Heat Holders’ thermal construction traps more warm air close to your skin, keeping you cosy and warm for longer. 0.45 TOG RATING - Designed for layering, offering an extra boost of warmth on cold days. The higher the TOG, the better the heat retention. RIBBED FIT - The ribbed design shapes to your body’s natural contours for a comfortable, slim fit that’s perfect under clothes. COTTON RICH BLEND - Made with a cotton-rich material for ultimate softness and warmth, providing ALL DAY comfort. ELASTIC WAISTBAND & 2 COLOURS - Featuring a flexible waistband for a great fit, available in Grey and White with 4 sizes to choose from.