45L tactical backpack with waterproof function, a large-capacity and easy-to-use rucksack specification with expandable functionality via the MOLLE system. Color: Black as shown in the first image. - This durable and waterproof backpack can be used in various situations, such as everyday use, mountain climbing, camping, and disaster preparedness. - Compared to regular rucksacks with a capacity of 20L to 30L, this backpack has a large capacity of approximately 45L. It's a highly practical item that can store a lot of luggage. - The MOLLE system allows for customization according to your needs and preferences. You can add pouches, drink holders, and other items to further increase storage capacity. - The backpack is made of durable and waterproof 600D Oxford material. It has a good feel and breathability, and the back is designed to release heat easily. * There may be slight variations due to cutting and sewing. Please understand. * The size of this product is measured flat, so there may be some variations depending on the product. * The actual color may look slightly different depending on the performance of your monitor.