Size 1 - Approx 11cm / 3 - 6 months
Size 2 - Approx 11.8cm / 6 - 12 months
Size 3 - Approx 12.6cm / 12 - 18 months
Size 4 - Approx 13.4cm / 18 - 24 months
Please measure your child's foot from heel to big toe allowing 0.5 - 1cm wriggle room. If in doubt go up one size, the elastic opening will keep the moccasin on your child's foot and they will have room for growth.