COSCOOA is a trading company, more than 20 years, specializing in tactical backpacks, hiking backpacks and tactical gears. B307 tactical backpack is a professional 50L big capacity for 3daypack. Perfect for hiking, mountaineering, cycling. The improved design uses excellent 600D Oxford fabric fabrics, tailoring technique with double stitching, full body carrying system. The backpack is more durable and work very well in high-intensity outdoor sports. We have always focused on providing you with the best products and best service. If you have any questions, you can contact us at any time, we will provide you with 7*24 hours of customer service.