Our Signature Line is specifically made for athletes. It’s a mineral based endurance formula that is tough enough to stay on in extreme conditions. Unlike our light, sheer, and scented Original sunscreen formulas, our Signature Line goes on thicker and leaves a clear sheen film on your skin. This “film” is how natural sunscreens work, by actually reflecting the sun’s damaging rays away from your skin, like a mirror. Our Signature Line also does not contain any fragrance, which can irritate your eyes when you sweat. It’s non-migrating, doesn’t make your hands slippery, blah, blah, blah… If you surf, skate, run, golf, bike, play tennis, etc…. we guarantee you will absolutely LOVE it.