Designed for today's athlete, the TYR Liverty Alll Over Jammer features a 100% polyester construction, making it nearly 20 times stronger than traditional swimwear. Whether your workout takes you to the pool or the beach, you can rest assured that TYR's Durafast One® manufacturing offers both a secure fit and fade-fast color. TYR jammer swim trunks stop above the knee and feature a compression fit and an adjustable drawstring at the waist. With its unrestricted freedom of movement, the Jammer is ideal for athletes who want reliable coverage every time they swim.