The Boys' Shark Color Change Rash guard is a stylish and functional swimwear option for young boys. Made from a blend of nylon and spandex, this rash guard offers a comfortable and flexible fit. The unique feature of this rash guard is its color-changing ability when activated by water, revealing a cool pattern. With a UPF50+ rating, it provides excellent sun protection for your child's delicate skin. Easy to care for, simply turn it inside out and machine wash cold with like colors. Avoid using bleach and opt for line drying to maintain the quality of the fabric. This rash guard is made from 85% polyester and 15% spandex, ensuring durability and stretchability.