OFAMOUS Business Backpack, Expandable Gusset, Waterproof, Large Capacity, Men's, Expandable Functions, Fits 15.6-inch Laptops, Perfect for Commuting,

[Various Models Available] Model 1: 46x32x15cm (22L before expansion) / 46x32x25cm (39L after expansion). Model 2: 45x31x22cm (30L before expansion) / 45x31x26cm (39L after expansion). These models offer ample storage space with a multi-layer design, large enough to hold 4-5 days' worth of clothes. Numerous pockets make it easy to organize your everyday items. They can even fit a 15.6-inch laptop, A4-sized files, and magazines, making them ideal for travel and business trips. [High-quality fabric] Made with high-density waterproof fabric, it protects your valuables from sudden rain and water damage. It is also highly durable and made with a material that will not deteriorate even after long-term use, so you can use it with confidence. [Multifunctional Design] This versatile backpack can be used as both a backpack and a handbag. Its capacity can be easily expanded, so you can carry more with ease. The back of the backpack is carry-on compatible, allowing it to be attached to a trolley case for convenient transport. Model 1's 180° opening design allows for easy access to your clothes and allows you to organize them like a suitcase. [Attention to Detail] High-quality zippers ensure a smooth feel. Reinforced stitching on the backpack seams improves durability and weight capacity. An external USB charging port allows you to charge your mobile phone anytime, anywhere. The shoulder straps reduce pressure and relieve shoulder discomfort. [Abundant Storage Pockets] Model 1: 2 main pockets, 1 hidden pocket, 2 open small item pockets, and 1 laptop pocket. This design is ideal for those who want to organize and carry valuables and essentials. Model 2: 3 main pockets, 3 small item pockets, 2 laptop pockets, 1 water bottle pocket, 1 hidden pocket, and a separate shoe storage compartment for easy shoe changes while traveling.