Shoe size for 12 month old

Our son was a 4 when he started walking at 10 months. He was an early walker and "has a big foot". Beginner walkers are best "barefoot" so I would bring Robeez. I am 90% sure 6-12 mos would fit b/c my son fit into Robeez 6-12 until he was about 14months and he has a big foot!If you want real shoes, buy a few, and return what does not fit if you want:)