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. The new One Biglogo is the ideal swimsuit for those intense training days. The black and silver suit has a Tech One back, having the wide opening combined with the thick straps, this suit gives you the maximum freedom of shoulder movement and reduced drag for improved glide.The One Biglogo is perfect for all training drills, legs or arms, with its medium cut having all leg muscles free to hit even the most intensive leg drills.The One Biglogo is designed using Arena's Maxlife 100% polyester. This material is an exclusive from Arena having 100% PE fabric that guarantees maximum resistance to chlorinated water. Max Life PBT construction is a specifically engineered PE yarn that provides excellent elasticity.After more than 240 hours of usage Max life will still keep almost 95% of its original characteristic. With its quick drying, 50+ UV protection and the way it combines excellent fit with power retention performance, this is the perfect suit for the intensive swimmer.Features-Quick drying-50+ UV protection-Max life PBT construction -Maximum resistance to chlorinated water-Tech one back-Medium cut-Fully Lined