tried wearing black and white stripped stretch clothes in the sun. Under the white lines my skin got a darker shade but under the black lines it did not change. So yes I looked like a zebrs. since then I only wear dark clothes for the sun because I don't want the sun to affect my skin. thats why I think that an Abaya is the best swimming wear. With total protection for the whole bodey! I hate putting suncreams becase it blocks my skin cells and does not allow it to breath, so an Abaya is fresher for my skin. LOL!