Our baby Zip WONDERSUIT Rib Long Sleeve is crafted from super soft fabric that moves and stretches as baby does. With extra weight for winter warmth, it s a woolly weather must. Baby zip WONDERSUIT with long sleeves and a two-way zip for changes on the go. Zip cover keeps baby s skin safe. Cozy cuff feet for extra warmth. Cuff mittens up to size 6-12 months.