Hi guys, I'm a lifeguard (at a pool, if that's relevant) and during the summer its obviously very bright out, and sunglasses are a must. Last summer I prepared poorly and simply bought a $10 pair from the grocery store. While these worked... better than no glasses at all, they weren't anything impressive. They didn't reflect a lot of the sun back and I felt like a lot still hit my eyes, and there was still a significant amount of glare. I've been hearing of "polaroid" glasses and the like, and have heard, while expensive, they're worthy of the price and do a great job. Polaroid or not, can anyone (perhaps with experience in lengthly sun sessions) recommend a pair? I have no brand preference, but I am looking for a nice pair. $200 is as high as I'd go.