Thermal underwear 4F Jr 4FJWAW24USEAM149-36S Children's 4F thermoactive underwear. The variety and characteristics of winter sports required the use of solutions that would work well in changing weather conditions and provide full freedom of movement. Thanks to this, seamless underwear provides high thermal insulation properties and thermal comfort both during long hours spent on the slopes and favorite everyday activities on cold days. Properties: children's thermal underwear set 4F compression cut that fits tightly to the silhouette 4FSkin technology ensures perfect fit and freedom of movement standard cut of a T-shirt reaching to the hips mid-rise leggings with long legs made of synthetic material that ensures durability and is easy to care for the addition of polyester (33%) makes the material durable and resistant to wear for many seasons uniform colors that match many styles seamless construction, works well as a first layer of clothing round neck t-shirt dominant material: polyamide Color: blue