FEATURES Side length: 36cm Chlorine resistance Durable Long-lasting Internal drawstring Quick drying Front lined Inner drawstring SPF 50+ UV protection 100% polyester (at least 50% recycled polyester) The Boys Kikko Pro Swim Jammer from Arena is ideal for both competitive and intensive swimmers made from durable MaxLife Eco Fabrics comprising of 100% polyester - 50% recycled polyester made from recycled PET bottles. These jammers are comfortable and secure with a 36cm leg front lining and an internal drawstring. Great for young swimmers.