Speedo Swimming Mens Briefs ECO Endurance+ 7cm Brief. Our classic brief, now with better eco-credentials. Offering a stylish take on a Speedo classic, our well-loved Valmilton Aquashort brings an understated style to your beach holiday. Made from chlorine-resistant EnduraFlex fabric with 4-way stretch properties and CREORA HighClo, it offers superb shape retention and includes an external drawstring. Body made of 80% Recycled Nylon, 20% Elastane (Creora HighClo). EnduraFlex: Body made of 8% Recycled Nylon, 2% Elastane (Creora HighClo). Nylon yarns made from 1% pre-consumer waste, such as waste fabric from factories, with high chlorine resistance and 4-way stretch - fits like new for longer with CREORA HighClo Outside drawcord for a secure and adjustable fit Front Liner made from 1% Recycled Polyester All Over Print