Nothing provides all the tools to run game on winter like a one piece, and the girls\' Burton Game Piece One Piece has all the essentials built in. DRYRIDE two-layer fabric with critically taped seams provides a storm-stopping barrier against moisture. Thermacore insulation provides reliable all-winter warmth, and there\'s still plenty of room to layer. The Room-To-Grow system allows limbs to expand at the seams to outlast growth spurts. This one piece is a bluesign® product, which means it\'s approved to meet the highest safety standards for both people and our planet.