Our Black Mary Jane shoe features a black color upper and sole, with a T-shaped cutout and four heart details characteristic of the Mary Jane look. The elastic band at the ankle makes for easy on and off, and keeps them on through kicking, tugging, and first steps. Sizing: US 2 (0-6 Months, 3.75" Sole). US 3 (3-6 Months; 4.125" Sole) US 4 (6-12 Months, 4.5" Sole). US 5.5 (12-18 Months, 5.0" Sole). US 6.5 (18-24 Months, 5.25" Sole). US 8 (2-3 Years, 5.75" Sole). US 9.5 (3-4 Years, 6.25" Sole).