ECO Endurance+ (53% polyesther and 47% polybuthylen) guarantees comfortable swimming and long durability. Swimwear is made of environmentally friendly material. This material is made of recycled polyester. 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. They are lined with a lining. This is a weaker layer of fabric under the upper fabric. The lining contributes to the durability of the swimsuit and swimsuits are not transparent after soaking. This is especially true for swimwear of lighter and white color. The only disadvantage of the lining is that swimsuits will dry longer. 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.