For mardi gras a couple years ago I was at the parades and i had a shirt that had the front was in a weird shape and I had a thin undershirt underneith it well it had some details on it and it ended up burning through the t-shirt and of course we were all worried about beads so i got the crazyest burns in random spots....on to down the road..I ended up getting really dark in those places that burnt so in my prom dress TWO years later there were spots all over the top of my chest and my neck..needless to stay i put 70 spf now