Speedo Men's ECO EnduraFlex 5cm Brief is a great option for regular swimmers. The brief is made from 100% recycled fabric, so it's better for the environment, but still does not compromise on chlorine resistance. It has a drawstring waistband so you feel secure and comfortable. Speedo Mens ECO EnduraFlex 5cm Brief features classic style, so no one will know when you're wearing it! Classic style - doesn't show when worn Drawstring waist - enhanced fit and security ECO EnduraFlex fabric - chlorine resistance