The Speedo Core PowerFlex Jammer is the go-to choice for serious swimmers. Crafted from Speedo's durable PowerFlex fabric, these jammers offer optimal chlorine and UV resistance. Their streamlined design reduces water drag, while the compression properties provide muscle support and reduce fatigue. With a drawstring waist for a customizable fit, these jammers are perfect for achieving peak performance in the pool. Choose from a variety of stylish designs to suit your taste. Trust in Speedo's renowned quality for your competitive swimming needs.