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 approx 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.