GNU Snowboard Binding Size Chart

US Men's
Binding ModelSmallMediumLarge
Gateway4 - 77 - 1010 - 12
Psych7 - 99 - 1111 - 14
Freedom7 - 99 - 1112 - 14

US Women's 
Binding ModelSmallMediumLarge
B-Free5 - 77 - 99 - 10
B-Forward5 - 77 - 9 9 - 11
 
Binding ModelS/MM/L
B-Real4 - 76 - 9
 
Kids'
Binding ModelX-SmallMedium
Gnunior 2 - 5 
Gateway 4 - 7