K2 Mini Turbo Snowboard Boots Kids' / Children's Size: 18.5 - 20cm Used for approximately 15 days over 3 seasons after being purchased new. The sole on the heel side started to lift slightly last season, so it was repaired with adhesive (Sport Goo). It has been used for several days after the repair and is working without any problems. Adjustment insoles are included, so they can be used for a long time as your child grows. Thank you.