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. These swimsuits are only partially lined with a thin layer of fabric in the front. The lining does not cover the entire front of the swimsuit. The swimwear have elasticated waistband for better tightening and comfortable wearing. 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.