Men's racing swimming shorts JKATANA OPEN WATER specifically designed to provide the necessary comfort and durability for the longest and most extreme races. The item evenly compresses, supporting buoyancy in the water and facilitating the strokes. The extra-light fabric is composed of bi-elastic HT modules with high mechanical sealing. The seams are replaced by heat-sealing, which drastically reduces the friction coefficients in the water and any discomfort from rubbing. The exclusive AcquaSuAcqua treatment enables the creation of a protective film made from water molecules that do not penetrate the fabric but which help the item to glide through the water more effectively. The costume is completed with an internal drawstring for a closer fit.