Asics Gel CHallenger 12 Tennis Shoes, Grey and Orange, women's 11.5 (men's 10). These are awesome shoes! They are very similar to the Gel Res 7 (a better shoe than the Gel Res 8, if you want to know my honest opinion). They are very comfortable and good looking shoes. I have never played tennis in the Challenger shoe so I cannot say anything to how they feel on-court, but I know the tread is exactly the same as the Gel Res 7. Basically they are the same shoe but without the durability guarantee and with a slightly different look. In some areas I think it looks even cooler than the Gel Res 7's; for example in the heel area, where there is a sort of flashy, almost hologram-like pattern in the plastic - where it says "gel challenger." I will upload pics of the actual shoes soon. Anyways, these are one of the top-tier shoes in Asics excellent line of tennis shoes at that time. For my money they were better than the Gel Res 8 and the Gel Challenger 13. (Not that I don't love those too). Like the Gel Res 7 and 8, the Gel Challenger 12 looks exactly the same for men and women; they just made them in different colorways.Size: they are in fact a women's size 11.5. Also, they would work for men's 10/10.5. I was able to get my foot in them and I wear men's 11 (!). I would NOT wear them to play tennis, of course - they were way too tight - but the fact that I could put it on and walk around in them tells me that they are definitely men's size 10, and probably if you wear 10.5 they will work. I would not recommend them for you if you wear men's 9.5. The color is "grey and pink cameo," so yes they are technically pink, but it is at least *almost* orange. :P