Sleek navy and timelessly stylish these Essential Endurance+ Jammers are made from Speedo's Endurance+ fabric. Perfect for fitness training, they offer a comfortable fit thanks to the four way stretch technology. Designed to hug the contours of your body to create a hydrodynamic profile in the water, they feel soft when they're on but are reassuringly secure with their drawstring waist. Slow to fade and durable these Jammers are designed to withstand the test of time.