Material: The shower cap is made of thickened tear-resistant polyester, which is soft, lightweight, and comfortable to wear. The waterproof PU coating helps protect hair from chlorinated water, though it is not 100% waterproof for very thick or long hair. Scope of delivery: 2 unisex swimming caps in black and blue. Suitable for women, men, kids, boys, and girls. The shower cap measures approximately 10.25 inches wide, 6.1 inches high, and 12.8 inches in circumference. It is elastic and fits head circumferences ranging from 52 to 63 cm. We recommend measuring your head before purchasing. Easy to wear: Compared to traditional silicone swim caps, polyester swim caps are easier to put on and take off without pulling. Swimming and shower caps for adults and children, suitable for professional swimmers or beginners. Ideal for all hair lengths, short or long.