The 3.0 version of the ultra boost trainer. I've been on the lookout for some of these for over 6 months. Have not seen the male version, this cheap and in stock in a long time. Size 10s in stock aswell. Word of warning I sized up on the old ones, normally a 10 but needed an 11. This is not the case on the 3.0 I would suggest sticking to your normal size.