BURTON ION snowboard boots with BOA system in black/red. - Brand: BURTON - Color: Black/Red - Model Name: ION BOA - Features: Dial-type boot system Thank you for looking. Burton ION BOA 28cm (20-21 season model) Used for about 5 years, the flex has become softer. There are scratches on the exterior due to use, but they do not affect riding. The BOA dial for tightening the right boot's upper was replaced 2 years ago. Superfeet insoles are used (original insoles are not included). Thank you.