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 Arena Team Challenge Back Solid Swimsuit is a great choice for club or fitness swimmers that require a durable swimsuit for training sessions. A Challenge Back has combined thin and wide straps with a wide back opening, giving you maximum freedom of shoulder movement an excellent feel of water and reduced drag. With non-restrictive straps, make it perfect for all training drills, it's high leg cut provides style and comfort for you during your long hours in the pool. This swimsuit is made with Arena's MaxLife, 100% polyester fabric. This material is an exclusive from Arena MaxLife Eco which is the evolution of arena’s premium fabric for regular and swimmers, delivering maximum resistance to chlorinated water. While maintaining the same benefits as the standard fibres used in the original MaxLife, the new ecological version features more than 50% recycled polyester, obtained from PET Bottles and produced adopting a circular economy approach that helps save energy, reduce CO2 emissions and minimize water usage during the process. Its construction is based on specifically engineered PE yarns, providing elasticity and combining an excellent fit with power retention performance. Additional features include its quick drying properties and 50+ UV protection, this is the perfect suit for the intensive swimmer   Key Features: Quick Drying 50+ UV Protection  Challenge Back Design Medium Cut Leg  Front Lining from size 10-11 to 14-15 Thin and wide straps with a wide back opening Material: MaxLife Eco, 100% Polyester Fabric