Rome Hydra AW 2026Designed for riders who want a lightweight, progression oriented ride for linking turns, riding powder or even lapping the park. From day one to slushy spring laps, the Hydra AW has got you covered. Hydra AW Snowboard Bindings Size Chart Depends on boot binding style and or brand safest to upsize. Rome recommends checking the boot to binding fit with an adjusted binding. This chart serves as a guideline only. If in doubt, please contact us for advice.