Introducing our Expandable Travel Backpack with Large Capacity, perfect for all your travel needs. Made with durable Oxford cloth material, this backpack has a capacity of 36-55L and is designed to be waterproof and wear-resistant, making it ideal for any adventure. The solid color pattern and polyester lining texture give this backpack a sleek and modern look. The curved shoulder straps provide added comfort, while the various color options, including black, gray, and pink expansion versions, allow for personalization. Additionally, the backpack comes with a small size black expansion version, perfect for the on-the-go traveler. This 20-inch backpack also features a dedicated 17.3 inch laptop compartment, making it the perfect travel companion.