Rad one v2 sizing

Folks who have also worn Nike metcon 9 or metcon free recently, are you wearing the same size in Rads? Up? Down? Pls also mention your gender when replying as general foot and width will also help.

Also - how fast have you seen limited colorway drops sell out? It seems like they generally have stock of less popular colorways but idk how fast you have to be to get the limited ones?