what size are the boots for the K2 Snowboard mini turbo grom Package S?

Tech Specs:

Snowboard Shape:

twin 

Snowboard Profile:

rocker (reverse) 

Sidewall Construction:

Hybrilight Noodle 

Snowboard Effective Edge:

[110 cm ] 853 mm; [120 cm ] 954 mm 

Snowboard Waist Width:

110 cm 217 mm, 120 cm 224 mm 

Snowboard Sidecut Radius:

110 cm 5 m, 120 cm 5.5 m 

Stance Width:

[110 cm] 13 in; [120 cm] 14 in 

Stance Setback:

centered 

Snowboard Core:

W1 Noodle 

Snowboard Base:

extruded 2000 

Recommended Rider Weight:

[110 cm] < 120 lb; [120 cm] < 120 lb 

Binding Highback:

Grom Highback 

Binding Ankle Strap:

single strap 

Binding Baseplate:

Groms Chassis 

Binding Ratchet Type:

EZ Feed 

Boot Material:

synthetic leather 

Boot Shell Lacing:

Boa 

Thermo-moldable Boot Liner:

no 

Boot Sole:

Cut & Buff 

Boot Midsole:

EVA 

Boot Flex:

soft (1 of 10 on the manufacturer's scale) 

Recommended Use:

snowboarding 

Manufacturer Warranty:

1 year