Id wear half-pints so that when I get rescued, I can tell people Ive been there since I was a kid and they fit me back then. Id then write a book about being on a deserted island for years as a child and then become a millionaire and buy all the Oakleys I could imagine.
The key is not to blend in the surroundings. That if you want to get rescued. I think a high Polished silver frame with a high reflective lens that stands out. Emerald will just blend in with the plants in an island.
I'd take an A-Frame w/ FIRE iridium just incase there is a Dessert Storm