Endurance+ (50% polyesther and 50% polybuthylen) guarantees comfortable swimming and long durability. It is 100% chlorine resistant, absorbs less water, quick-dries and maintains its shape and colours for a very long time. The material is 20 x more durable than classic materials. The material is suitable for training and competition swimming. Swimsuits do not have a lining. The advantage of swimsuits without lining is faster drying. The fastening string guarantees comfort. You can fasten the swimsuit by the string and you don't have to worry anymore that the swimsuit will fall down when you jump in the water. Swimsuits have a medium cut. (Medium Leg) This swimsuit has a Muscleback style back. This cut is typical for training swimwear as it provides an optimal range of motion when swimming.