Blue 30L Dry Bag Backpack: • Constructed from 210T Grid Cloth with PVC backing, taped waterproof seams. • Roll top and buckle closure, clear front zip pocket is water resistant. • Clear pocket provides easy touch-screen accessibility for electronic devices. • Thick rubberized top handle provides comfort and durability for large loads • Includes 2 adjustable and removable shoulder straps to convert from backpack to duffel bag. • Main compartment is 100% waterproof with Storage Capacity: 1935 Cubic Inches. • Keeps contents dry during inclement weather and wet conditions.