Wear our classic black Thinstrap during training and you won't look back. The wide-open back and thin straps allow for unrestricted shoulder movement, while the high-cut leg offers maximum flexibility for all strokes. Made from our durable Endurance+ material, it is quick-drying and chlorine-resistant. Additionally, the polyester yarn in the Endurance+ fabric is made 100% from post-consumer waste, such as recycled plastic bottles. Thinstrap design with open back – supports shoulder movements, is very flexible, and is therefore ideal for training. High leg cut – for full freedom of movement during workouts. 10% chlorine-resistant – stays looking new for a long time. Quick-drying – dries faster after swimming. One of the yarns in the Endurance+ material is made 10% from post-consumer waste, such as recycled plastic bottles.