Burton Ion Boa 2021. The only choice for riders who charge hard across the entire mountain. The Ion has climbed to legendary status for its stacked tech package with lightweight comfort and enhanced rebound. The full feature list includes AutoCANT EST® soles for natural lower body alignment and superior board feel, DRYRIDE Heat Cycle™ for enhanced warmth and moisture wicking, and ReBounce tech that both reflects body heat and cushions consistently in freezing conditions. Space blanket heat reflector shield prevents cold feet from ruining your day, while Burton's perforated Life Liner tosses sweat away without a thought.