Roi Rain Boots KalamataMade for puddle jumping and fun days spent outside, these light and comfortable rain boots are a natural first choice in any child's basic wardrobe. Designed with pull tabs in the back that make them easy for little hands to pull on. Insole length in mm: 21: 142 mm 22: 147 mm 23: 155 mm 24: 162 mm 25: 167 mm 26: 174 mm 27: 182 mm 28: 188 mm 29: 195 mm 30: 201 mm 31: 208 mm 32: 215 mm