This unique backpack is made entirely of waterproof tarpaulin, a heavy-duty plastic-based material to ensure your gear is protected even in the worst weather. It features a variable rolltop opening that gives up to an extra 8 inches when unfolded to fit oversized gear, like 4-channel DJ controllers, 2-octave keyboard controllers, or even multi-effect pedals. 

The Magma Rolltop Backpack also features a removable, padded accessories panel with a laptop compartment and 3 storage pockets. The backpack has S-curved should straps for comfort and padding for back support, as well as metal buckles, chest strap, and hip belt.