arena (Arena) Competitive Swimsuit for Racing, Women's [AQUA ADVANCED] Remic (Crossback) ARN-1021W Size: O Size Color: Black (BKBU) Material: Polyester, Polyurethane Features: FINA Approved Model Specifications: The "AQUA ADVANCED" series is recommended for swimmers competing in regional tournaments. This is a FINA (International Swimming Federation) approved model, which is required to participate in official competitions. This is a knit material competitive swimsuit model that pursues ease of swimming by adopting the material "AQUA XTREME," which has polyurethane placed in the horizontal direction that wraps around the body, and has approximately 5% higher elongation in the vertical direction compared to the conventional model "X-PYTHON2." If you are getting used to competitions and want to aim for a better time next, please give it a try! Sports Costume Sexy Dance Costume Model #PHARFAITE/Parfait