Boys' thermal underpants Kilpi NIEL-JB for unrestricted movement of your child on winter days. Made of quick-drying OPTI-DRY material, which is pleasant to the touch, extremely elastic, effectively wicks moisture away from the skin, thus maintaining the thermal comfort of the child. Waistband with high waist and woven hem, does not press and adapts well to the figure. Flat seams do not irritate the skin and the snug fit ensures freedom of movement. In addition to the Kilpi NIEL-JB boys' thermal underpants, we also recommend buying the Kilpi NATHAN-JB thermal T-shirt, as a great set not only for skiing, but also for other outdoor winter activities.Material composition: 53% polyamide, 41% polyester, 6% elastane