Speedo Boys Hyperboom Splice Aquashorts (5-16 Yrs) - 15-16 - Black Mix - Available at M&S
These swim shorts from Speedo are designed to help your youngster perform at their best in the pool. They're made in a streamlined shape, with an internal drawcord for an adjustable fit and the Boom logo stripe along the leg and hip. The brand's EnduraFlex fabric offers impressive chlorine resistance.