Just like the Marana and Joslin 1 for me, I go 0.5 size up. They feel a bit small in my TTS size. Whatever your size is for those two models (if you've had them or tried then on before) will work for these.
For reference, I'm an 11 in Van's Pros, SB Dunks, and most Adidas, but an 11.5 in these.
Also, the comment the other person made about Dunks being more of a "contoured" fit to your fit, where these are not as contoured but still fit your foot shape pretty well, imo.