Junior open-back kneeskin for swimmers who swim every day. Made with "FLEX Σ χ (Flex Sigma Kai)", an environmentally friendly material using recycled polyester yarn that reuses plastic bottles. Excellent elasticity, high water repellency, and a fit created by three-dimensional design and cutting support comfortable swimming. The switching along the hip joint makes leg movement smoother and reduces skin chafing from stitching. The higher neckline reduces exposure and prevents water from entering. The shaded surface treatment also has the effect of covering the body line. Large back holes for good water drainage and V-shaped shoulder straps that do not hinder the movement of the shoulders. Stitching that makes the waist area look neat. Streamlined stitching that considers the flow of water expresses strength and speed. This model can be worn by existing "Flex Sigma" users. FINA approved model. Leg length up to the knee (4-part length). A wide variety of colors that will not get old are available. 【Function】FINA approved model / FLEX Σx / Stretch / Water repellent / Bottoms 4-part length ※Color: Red ※SCG11909F ※Regular price 9900