Look for a glove with leather, suede, or rugged synthetic material reinforcing the inner palm and fingers. This reinforcement is vital for the added stress you put on your gloves when grabbing your skis lap after lap in the park. Additionally, you'll often find silicone material added to the palms to improve overall grip.
Most park & pipe gloves rely on a DWR treatment for water resistance. Neoprene is a popular choice for these gloves because it provides lightweight insulation, even when wet.
Whether you're filming your friends or checking your messages, it can be very handy to have touchscreen-compatible fingertips on your gloves. Many park & pipe gloves include this feature so you don't have to take them off when you pull out your phone.