This hoverboard doesn't have any unlockable upgrades.
Glacier is a limited hoverboard released withSubway Surfers Winter Holiday. It is the forty-seventh limited hoverboard in Subway Surfers. Like any other hoverboard, it will protect you from crashing for 30 seconds. When crashed, the board will explode and recharge for a few seconds before it can be used again. It has no special ability. It has the appearance of an ice shard. Like most of others hoverboards, it costs 50,000.