Jammers, boys' swimwear is long-legged up to the middle of the thighs or just above the knees. Jammers should fit tightly the swimmer's body to reduce water resistance during swimming practice or competitions. Jammers racing swimsuits are even so tight that competitors dress in them for a few minutes. They are made of quality materials that resist tearing, the effects of chlorine and sunlight. All boys will love jammers swimwear from our wide assortment.