ALWAYS CHECK THE SIZE CHART (IN IMAGE SECTION ABOVE). SIZES PROVIDED ARE UK SIZES, BE SURE TO MEASURE AND CHECK THE SIZE CHART BEFORE ORDERING. TYR Hexa TrinityFit swimsuit in Black and Blue is a great choice for regular pool use. Constructed with TYR’s most durable textile, Durafast Elite™, this performance swimsuit utilizes high denier poly fiber and innovative circular knit construction to combine the strength and colorfastness of polyester with the comfort of spandex. Featuring a medium neckline, sleek/flexible straps, open, triple-bound X-back, and high cut leg, the TrinityFit is ideal for athletes who want comfortable coverage during every swim. TYR performance swimsuits are fully lined, provide UPF 50+ sun protection, 360-degree range of motion, and an antimicrobial lining for freshness. All Durafast Elite™ suits are chlorine proof and sustain an impressive 300+ hours of performance. Features: Constructed with Durafast Elite™ for durability and performance Innovative circular knit construction for strength and colorfastness Medium neckline for comfortable coverage Sleek and flexible straps for enhanced mobility Open, triple-bound X-back design for a secure fit High cut leg for an athletic and stylish look Fully lined for added comfort and support Provides UPF 50+ sun protection Offers a 360-degree range of motion for unrestricted swimming Antimicrobial lining keeps the swimsuit fresh Chlorine-proof for lasting quality Sustains an impressive 300+ hours of performance TYR Durafast Elite™: 94% Polyester / 6% Spandex