Product Description The Alliance Splice Jammer is built for a team united in skill and determination. Showcasing 100% polyester Durafast� the SPSP7 Alliance Jammer is 100% chlorine proof. Designed to be fast enough for competition and tough enough for training, this men's swimsuit lasts 20 times longer than traditional swimwear and provides 100% colorfastness. Engineered for maximum sun resistance, TYR Durafast� never fades and built-in 4-Way Stretch Technology never loses its stretch, so you never lose your edge. Part of the TYR Alliance Collection.