I got my first M Frame in 2006 and I've worn it regularly for nearly 6 years. I decided it was finally time to replace the earsocks after one of them stayed behind on my ear. The original rubber is nasty, loose, stretched out, and is starting to get that sticky feel to it. I've worn these frames (with different lenses) for racquetball, skiing, pond hockey, rollerhockey, riding a motorcycle, mini-Baja racing, Formula Car driving, shooting trap, skeet, sporting clays, competition small bore rifle, long distance high power rifle, IDPA pistol, steel pistol challenge, boating, softball, volleyball, showshoeing, white water rafting, snowmobiling. You name it. Yoshi inspired me to track down some yellow earsocks from a Livestrong pair since my school colors are black, silver, and gold and this is the pair of Oakleys I got in college, and I can associate a lot of the memories described above during college with this pair of glasses. Oakley wouldn't sell me anything but the black, white, grey, and brown they have online even though the custom options list a half dozen more colors, so it took some doing to get my hands on a set. I also got a new white set from the store and put them on my Pro M set, but that's not nearly as exciting. Old earsocks. And the new, after about 15 minutes of trying to cram them on without snapping a stem!