plunge headfirst into winter with sustainable insulation and weatherproof performance. nothing equips kids for winter like a one-piece - the burton one piece for girls has all the key features to make days on the mountain even better. the 2-layer dryrideâ„¢ material with taped seams provides protection against moisture. the thermacoreecoâ„¢ insulation, made from 90 % recycled fibres, provides reliable warmth all winter long, leaving enough room for an extra layer of clothing. the room-to-growâ„¢ system allows the limbs to expand the sutures so that growth spurts are not a problem. what's more, this one-piece is a bluesign® product and therefore meets the highest safety standards for people and our earth alike.