Adjusts in 45 1/3 adidas is clearly my size, but in this model you have to wear thin socks to not be a cramped. It's leather, and it is rather warm on the inside, not unpleasant because it stays dry with slight rain. Comfort rating, with thin socks, it is possible to walk into town all day without blisters or sore feet, no friction or gene. I do not recommend them for July / August, but the rest of the year. The studs are more pronounced than the pictures, they are rafters with a lot of grip, even on wet pavement, downhill, stairs etc .. no complaints. When I go I discover a city that takes this pair henceforth. The frame 3D heel is very comfortable and stable, rigid and soft. The protection in the front works well and avoids to explode toes on some reliefs, even in town. And finally the quick release is very convenient, I thought was a gimmick, but not all, the clamping pressure is distributed, still no gene, AC takes half a second and squeeze the plastic tip will fall into a pouch at the top of the tongue and it does not ride to everywhere. I have purchased full price (no coupon) but honestly they are worth, legs and back will thank you in town I suspect the sole of increasing wear and normal use'll trails and forest, even if the tarmac to prove their effectiveness to me.