For starters, I'm a big guy with big feet. I typically wear a 13 4E in New Balance lasts that have pretty standard dimensions, like SL-1 and AL-1. The last on this shoe is RL-3, meaning it is standard sizing in the Instep height, Toe Box depth, and Forefoot width, but is slightly narrower in the Heel. From this I decided it should be pretty close to my other NB shoes. The shoe was visibly smaller and the angle towards the toe is sharper than all my other NB shoes. The 610s wore much tighter than I would have thought based on descriptions on the NB website and in reviews here on Amazon. But I can say the design is awesome, craftsmanship seems good (built in USA), and support was good. I say go for if you like the styling but order it a full size larger than any standard last NB shoe. I would have just ordered a larger size, but the were out of the blue in 14 4E.

For info on the shoe from the website:
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