Roll top and buckle closure, Constructed from 210T Grid Cloth with PVC backing, Includes 2 adjustable and removable shoulder straps to convert from backpack to duffel bag, Thick rubberized top handle provides comfort and durability for large loads, The clear, water resistant front zip pocket provides easy touch-screen accessibility for electronic devices (device shown not included), 100% waterproof bag keeps contents dry during inclement weather and wet conditions, Taped waterproof seams,