The warmest one-piece on the block. The little riders might look too cute in the toddlers\' Burton GORE-TEX One Piece, built with head-to-toe insulation and full waterproof protection for any weather. Kid-friendly ease of getting in and out adds to why this will be your little one\'s favorite new piece for snowy days. And the coolest part is the sleeves and pant legs are extendable, so this suit can grow with them as they do. Let\'s hear it for keeping this onesie for more than one season.