The third gen I believe, the one out right now. I loved my original Straight Jackets (2nd gen though) and when I went to look for some new Oakleys back in like 2007 or 2008 all they had were black sunglasses and weird new styles. The new Straight Jacket though, man it just never made sense to me. It has a big curve upwards on the side and a huge bodybuilder looking arm. The design is so distracting. Why would they move away from such smooth lines and contoured body that was seamless? I could MAYBE understand making the lenses a little squarer but the rest, wow.