This junior version of Sorel's classic adult waterproof boot has a removable 9mm Thermo Plus felt inner boot rated to -40c, a snug Sherpa Pile snow cuff & a PU coated leather upper. It also has a handcrafted, waterproof vulcanized rubber shell with a herringbone outsole for durability. Please note this is a kids boot.** Please note that H = half, but that this is just the way that Columbia convert their US sizing. As an example, if you need a UK 2, please purchase the US3/UK2H.