I bought my first SweatyBands to wear while scuba diving. Nothing worse than hair stuck in your mask, plus the ocean does quite the number on tangling it all up. My Sweaty Bands keep my hair under control and out of my face/mask, stayed in place while diving and once back on shore, and everyone loved the Stars and Stripes one I got at the same time! The only headband that has stayed on my head before, on land or in the water!