Unfortunately I didn't take Rocky M's advice and ordered size 11 (which is the size I've successfully used with my other 6 pair of Hoka One Ones). But I wound up with the exact same problem Rocky M mentions below (rubs against big toes), so I'm sending back and will be trying out size 11.5.
Rocky M wrote:
I had a chance to try the Clifton 3 in size 11 today. Overall, it feels like it is about 1/4 size too small for the size label. It really felt like a 10.75'sh. I suggest with a mid-weight sock (used balega), that you go up a half size. My big toe (the slightly longer foot), was rubbing at the end. They were out of 11.5's, but the feel was good. Light, well cushioned & not an energy dispersing feel like I had in the Zoot Ali'i. Not sure if it was the rocker style sole that made it feel more snappy than the Zoot. Certainly not close to an Adidas or Asics, but better than the Zoot. The shoe overall felt narrow side to side but volume in the toe box height was better than Clifton 2.
Tried on the Asics DynaFlyte, which has natural fibers (not sure if that means you can smoke them or not--or what kind of fibers they're made of), but that is a fantastic feel for a ride. Seems like a great training shoe or Ironman Race shoe if you're needing more cushion than the DS Racer. Although the DS Trainer is slightly lighter, the upper doesn't stretch quite as much as the Dyna Flyte.
Our store was sold out of 11.5's so I'll have to wait to see how that goes in a week or two.