Premium Quality Material - This backpack is made of waterproof durable canvas and top quality genuine crazy horse leather trim. - The premium quality ensure the long lasting durability. - The high density canvas is made of pure cotton, crafted with a tight double-knit weave,it's strong, hard-wearing, scratch-resistant. The crazy horse leather is made of high-end top layer cowhide material, with a thickness of 2.5mm, which is solid and durable. - And the quality solid hardware wont gather rust easily. Backpacks Dimensions - This backpack dimensions is 13.4L x 7.5 H x 17 W inch which can fit 15. 6 inch, 15 Inch, 14 Inch and 13 Inch Macbook/Laptopsuch as for Dell HP, Asus, Lenovo, Acer, Samsung, Sony, Mac - Book, Notebook. - The backpack is suitable for travel, hiking, climbing or go to work. Multi-pocket Design - The large main compartment and various pockets is perfect for optimal organization and tidy storage. - Inside has a large laptop compartment, 2 open pouch for cell phone or coin. - Exterior with 3 pockets good for easy to get at chargers, phones, and USB cords. Perfect Details - Smooth zipper functionality, hand-stitched design, antiqued finishes, high-density cotton shoulder straps.