M4 Snowboards, super cheap and shipping wicked fast when you order from Proboardshop.com. With all the right features like, sidewalls, fast bases and 2 year warranties, M4 Mens Snowboarding is great value wrapped in awesome. All M4's have two year warranties and we have been around since 1982 so you know the transaction will grant you satisfaction. Proboardshop. We have it all.