Bought a pair of female specific Northwave compacts from Sierra Traders a few months ago on closeout, just couldn't beat the price. Anyway, the fit is great but...I get some serious pain at the very start of my arch after awhile, nearly only when I ride road. Is this because the shoe is more flexible? Feels more so than the Nike Cairns I ride. Is it the "female" specific insole? Or am I just being weak?