See Kai Run, Atlas II Waterproof Insulated Boot, toddler size 8 A seam-sealed waterproof boot that's ready for playtime no matter the weather features a gusseted shaft with hook-and-loop straps to seal out snow and debris. Thinsulate® insulation—temperature-rated to -35º Fahrenheit—helps keep little feet toasty warm, while a grippy lugged sole provides enhanced traction in snowy and icy conditions.