The Horsefeathers Spirit One Piece winter suit for children is equipped with an UltraTech® outer material, a laminated membrane and a 10,000 mm water column. This Horsefeathers jumpsuit has a grow-up system, thanks to which you can lengthen both the sleeves and the legs. * outer material: 100% polyester * insulation/filling: PET (100 g body, 80 g sleeves and legs) * lining: 100% nylon taffeta * UltraTech 10/10 membrane with 10,000 mm water resistance and 10,000 g/m2/24h breathability * PET insulation - is made of PET granulate and is made of thin compressible fibers. The space between these microfibers is filled with air, which provides warmth and effectively maintains it even when wet. The insulation dries quickly, is very durable, soft, breathable and has excellent regeneration ability after compression. * extremely durable Coats threads * extremely durable YKK zippers * Grow-up system - regulation of sleeve and leg size by up to 7 cm * fastening with a high-quality YKK® Vislon zipper, which is covered with a Velcro fastener * raised collar with fleece lining, hood * two front zip pockets * belt loops * Velcro cuffs * bottom hems of the legs doubled with elastic inserts * the model is 114 cm tall (age 4.5 years, weight 18 kg) and is photographed in size 4-5 Years * the design can be each piece is laid out differently * children's insulated winter overalls, snowboard overalls, ski overalls