CrocsUnisex-Child Classic Lisa Frank Clogs, Kids and Toddler Shoes

Has anyone noticed that these run small? my daughter had a size 2, i bought a size 4 because hers were too small. and the 4 i got in these is the same

my daughter fits size j2 what size should I choose to buy? Thank you

These sizes are crazy. Granddaughter is almost 2 years old and wears a size 6 in other shoes. I'm clueless what size to get these crocs! Anyone?

Are the all or just some of the jibbitz removable?