Our engineers took the V02 Max and gave it a shot of performance adrenaline to create the V02 Max Boa. The V02 Max Boa features the same revolutionary Vortech parts of its V02 Max cousin with one huge difference, a Boa Closure System. This system offers the best fit ever in a K2 Softboot and eliminates pressure points. It allows for shift on the fly adjustability with a simple twist of a dial, which is key when you spend hours upon hours in your skates.