Its heavy-duty Cap construction and 2.5 Impact Edge means you don’t have to worry about your skis when getting started in the park or hitting features all over the mountain. The ARV 84 will take as much abuse as you can dish out, meaning it won’t break and it also won’t break the bank. Hybrid Poplar / Composite. 2.5 Impact Edge. S7 Base. AR50 Sidewall. Flex Pattern(tip/waist/tail): 6-6-8.