More sizes means a better fit! La Sportiva shoes are built on European half sizes which are smaller increments than US half sizes. This gives us five extra sizes per size run, which gives you a better fit! 

KIDS	EUROPEAN
8 Kid	25
9 Kid	26
10 Kid	27
11 Kid	28
11 Kid	28/29
12 Kid	29
13 Kid	30
13 Kid	30/31
13.5 Kid	31
1 Kid	32
1 Kid	32/33
2M / 2.5W	33
2.5+M/3.5W	34
2.5+M/3.5W	34/35