Timbuk2 Especial Cuatro Backpack Imported Buckle closure 15" shoulder drop 20" high 14.5" wide Backbender flexible cooling panel for superior ventilation and comfort. Air jet textured for high abrasion resistance and exceptional strength to weight ratio. Comfort backpack straps with hydration or headphone routing, a reflective hit and detachable sternum strap. Internal welded laptop pocket for laptops up to 15" inches. Guaranteed waterproofing. Secondary buckle attachment point allowing you to over stuff this bag and carry everything including the kitchen sink.