Cargo pockets are those large thigh-mounted pockets you see on many snowboard pants, and they do offer genuine storage. They're great for carrying tools, snacks, or extra layers—stuff you want quick access to without digging through a backpack. For freestyle riders and park riders, they're practically standard issue.
That said, cargo pockets aren't just practical—they're also a classic snowboard aesthetic. If you prefer a cleaner, more streamlined look, you can skip them without missing much. Just know that cargo pockets can add some bulk and may catch wind at speed, which matters if you're charging hard or prefer a slim fit.
If you typically ride with a backpack or only carry the basics (pass, phone, maybe a snack), standard hand-warmer pockets and a pass pocket will cover you. But if you like having everything within reach on your legs, cargo pockets are a solid choice.