Bought this on B&H brand new, used for 3 trips. A few stains but functions perfectly. Holds 15" laptop. Very padded all around. Sunglasses pocket is lined with a soft velvet texture. External fabric is 600 denier twill fabric, which is water-repellant. It comes with an additional seam-sealed rain cover. The underside features a polyurethane coating for added protection from stray water. See link where I bought it from: https://www.bhphotovideo.com/c/product/1087432-REG/think_tank_photo_444_perception_15_backpack_taupe.html/overview