Speedo equals better fit, performance, quality, and innovation The color stroke endurance+ brief is a great allover print swim brief with popular heather grey striping from Speedo's performance race line. The suit features Speedo's exclusive endurance+ chlorine resistant fabric to last 20 times longer than ordinary spandex, and also has Speedo's four way stretch technology for a body hugging fit and softer feel. So no bag and sag, and it looks like new for longer. Speedo's 9 thread flat lock technology offers stronger seams, optimal stretch, and added comfort. The suit is ideal for swim meets, lap swimming, pool play, or any water activity. Look and feel your best in or out of the water, while you play, train or win in speedo, the choice of champions