The 2019 Lange RSJ 65 is a solid junior race boot, with an RSJ shell. This latest version features a new, more versatile fit. This boot is the first step towards a real junior race boot that flexes and puts pressure to ski. This boot is designed for athletes 8-12 years old starting at size 19.5 and working extremely well to size 23.5. The Lange RSJ 65 is the beginning of the logical race boot progression to the Lange World Cup boots. With a 65 flex, the Lange RSJ 65 is slightly stiffer and has better buckles than the 60 and a power strap to create a secure fit around the lower leg.