X RAY Expandable Roll Top Waterproof Trendy Backpack With Laptop Pocket.A Versatile Backpack With An Expandable Top For Adjustable Sizing To Fit Your Everyday Needs, Constructed From Durable Waterproof Fabric.Single Top Handle. Dual Adjustable Back Shoulder Straps. Expandable Top With Zip And Squeeze-Clip Closure. Exterior Features Waterproof Construction And Front Zip Pocket. Interior Features Padded Laptop Pocket And Accessory Pocket. Approx. 16.5-23 H X 11.25 W X 5.25 D In.