-Extra Capacity for All Your Essentials- --Expandable by 5cm (8L), this business backpack offers more space when you need it. From 33L to 42L, dimensions: 18.9/48cm (L) x 9.8/25cm (H) x 13.8/35cm (W), it's perfect for work, travel, and commuting-Waterproof Protection for All Weather- --Constructed with durable, waterproof materials and equipped with water-resistant zippers, this backpack ensures your electronics and essentials stay dry and protected-Unmatched Comfort for Long Hours- --Ergonomically designed with a breathable back panel and adjustable shoulder straps, this backpack offers superior comfort for all-day wear-Airline Approved amp; Travel-Friendly- --This business backpack meets airline carry-on standards, providing ample space for your 17-inch laptop and other essential items while staying within size regulations-Organized amp; Practical- --With 13 well-placed pockets, including a dedicated laptop compartment and side pockets for your water bottle and umbrella, staying organized on the go has never been easier