I'm not sure when Coppertone changed the formula for this product, but it now causes indelible orange stains on my clothes, swimwear, and towels that cannot be bleached out or erased with stain removers. The stains have appeared on cotton, nylon, and polyester after washing, but oddly not before. They might appear on other fabrics as well.
For this reason alone, I am giving Sport SPF 50 a poor rating, even though it provides prolonged sun protection while I swim salt water laps under the intense Florida sun.
To their credit, Coppertone does state on the container that it may stain your clothes. Take that warning seriously.