I'm a stand up paddle board enthusiast who was looking for a way to wear my prescription sunglasses without worrying about losing them if I fall off my board while paddling or surfing.  Living in Hawaii with so much bright sunshine, this was a necessity for me.  I decided to give Croakies a try.  What a great decision!  I now wear my prescription sunglasses every time I am on the water without no worries.  I have fallen many times attempting to surf my paddle board and my glasses stay on every time.  I no longer think about my glasses while paddle boarding. A great investment and I will gladly buy Croakies again.