●Jammers chlorine resistant : 80% Polyester,20% Spandex; Effectively reduces the damage of chlorine in the swimming pool to the skin. Strong hygroscopic fabric, easy to dry, breathable and non-sticky ●Mens jammer swimsuit sun Protection: The mens swim jammers with UPF 50+ features, and swimsuits protect against the suns harmful rays. Suitable for competition swimming, training, and fitness swimming ●Jammers for swimming with inner drawstring: Built-in adjustable drawstring on the waistband keep your jammers in place ●Athletic swimear jammers: Tailored to fit the human shape and "V"-shaped crotch for increased comfort and avoids weird looking when wet ●Men swimming brief: These swimsuits are designed with unique patterns and colors.