I got some Rudy Projects last year. Best pair that I have ever owned. Able to change lens colors (Extra) when needed. Plus you never have a prob with fogging up. A little spendy but worth it. I dont know about losing them though? I had my last pair (Raybans) for 10 years. I look at is this way, If I am willing and able to pay $300-$400 for a nice Rod and reel (Good chance you will break it or have it fly over the side of the boat first) and after years on the Water and sun (Cataracts prevention) your better off with a good pair of sun glasses.
My .02
Max <><