Women ́s Swimwear Legsuits Speedo Lzr Racer X Openback Kneeskin Swimsuit Black UK 21 Woman. FINA Approved : Yes Feel unstoppable wearing the Speedo LZR Racer X limited edition swimsuit. Increased targeted compression streamlines the body while support seams hold you higher in the water, making you feel your fastest.Features:This Speedo swimsuit has been fully approved by FINA:- Increased compression - A combination of two unique Speedo swimwear fabrics offer horizontal stretch resistance, providing intense targeted muscular compression but still allows excellent freedom of movement through every stroke- Body position - Increased linked core stabilizer panels within the swimsuit promote a more hydrodynamic shape and better position in the water- Ab activators - Laser-cut panels in the suit’s core liner increase water sensitivity while prompting you to align yourself correctly- Support - Maximised support seams improve the linkage of the body’s muscular kinetic chain, promoting better body positioning and increased muscular awareness- Laser cut swimsuit straps - Precision laser incisions control the stretch of the swimsuits strap, for greater shoulder comfort and fit- Open back style - The open back swimwear style offers greater freedom of movement and may be preferred by swimmers with arched backsSpecifications:- 53% Polyester /47% PBT