Speedo Men's Endurance+ Magnetic Space Brief Swimsuit 50% polyester/50% pbt Endurance+ fabrication lasts 20 times longer to give you more value for your money Resists bagging, sagging, and the effects of suntan lotion, skin oils, and chlorine New four-way stretch technology provides a body hugging fit, great shape retention, and soft comfort Front lined with drawstring waist for a comfortable and secure fit Made by speedo, the world's #1 swim brand