FEATURES 100% chlorine resistance Elastic waist with drawstring Extremely elastic materials Made from mare blu fabric - recycled materials Material: 100% Polyester: 51% Polyester recycled, 49% Polyester The Sporty Swim Jammer from Aquafeel is the perfect swimwear for regular swimming sessions and training. With the elastic waist with drawstring and elastic materials, the jammers provide great freedom of movement as well as a secure fit. Made from durable mare blu fabric, it is chlorine-resistant and long-lasting. Please Note: Recommended to size up if you prefer a looser fit Aquafeel Sporty Swim Jammer - Light Blue