●External Dimensions : 16.93" * 12.40" * 0.78" (430 * 315 * 20mm) ; Internal Dimensions : 16.53" x 12.01" x 0.59" (420 * 305 * 15mm),compatible with most 17"-17.3" Laptops. Shockproof & Waterproof: The outer surface is made of premium thickened EVA material,offers ultimate protection for your laptop from accidental scratches, dints, scrapes, spills and dirt. Additional Storage: Two pockets inside can storage accessories, like cellphone, chargers, cables, pens and others small belongings. Smooth Zipper:These two zippers are durable and smooth, allow you to open the case from either end of its opening, providing easy access to your laptop.