It's been a big week in sunglasses, and what better day than Cinco de Mayo to round 'em up for you. After all, isn't today the unofficial opening day to outdoor living (at least dining and drinking)? Free/Man introduced us to Warby Parker's new line of sunglasses which include a collaboration that benefits the work of Invisible Children. Ivy Style unearthed a collaboration as well—Brooks Brothers paired up with Ray-Ban and printed rep stripes on the inside of classic Wayfarers. And finally, the Persol enthusiasts at A Time to Get sing the praises of the new 2958 model.