I want to get LO the basic Erin style for winter but I don't know if they are good for walkers....Anyone know? They go up to 24 mos so I can't really imagine them not being for walkers...Also, unsure of sizing, if anyone has any input...I ordered a pair in the S last year after she was just born but they were HUGE so I returned.... Now she's almost 10 months (trying so hard to walk but falling down on her own), and I'm thinking the M?

I know some of you had these for your LO...Any advice would be appreciated!

ETA: I guess I could order both the S and the M on zappos and just return...Duh.

http://www.uggaustralia.com/s/UGG-US/baby/erin/5202.html?green=5302026883