Made of 78% Cotton, 17% Polyester, 5% Spandex Natural dye printing. Soft, Comfortable, Breathable and Warm. Safety durable, not rub their heels, better protect baby’s skin COMFORTABLE AND FASHIONABLE – Roomy elastic cuff and Y heel design, prevent shifting and falling off. Stretchable elastic to perfectly fit despite the size and shape of feet GIFT SET – Perfect for boys to keep warm with a fashionable cute look in daily wearing, outdoors, hiking, sports outfits. Will be best gifts in Holidays of Christmas, Halloween, Birthday and other special festival Size S Suit for 1-3 Year,Sole length 12cm/4.72,Suitable for baby feet length of 5.11-5.9 inch(13-15cm).