The WD-H58W brings a wider angle of view to your images, for example converting the XA10s 30.4mm lens into 24mm and allowing you to pack more of your subject into the frame. This comes in handy when shooting groups of people, small rooms, or wide landscapes. Tricked out organization panel and pockets Ridiculously padded dual density foam shoulder straps with Soft Neck seams Air Flow System (AFS) Technology premium back panel Materials - 1680D poly, 420D dobby nylon, 900D poly, 600D poly, 300D poly Specifications - Capacity - 1150 Cubic Inches Laptop Compatible - 17 Unit Dimensions - 18 H x 12 W x 7 D, Weight - 1.6 lbs.