This product contains 2 recycled plastic bottles. There is no trick, it's called sustainability! UltraStretch technology: highly stretchable product designed for top comfort and performance. Designed in one piece and without any seams to obtain maximum comfort preventing skin irritation. One product, two different styles. Enjoy more and combine it better thanks to its two different patterns. Designed to wick away moisture in an efficient and fast way. Ideal for high intensity activities. Protect yourself against the ultraviolet radiations from the sun. Designed for best protection in sunny environments.