Introducing our versatile shoulder bag with IPX7 waterproof performance, perfect for outdoor sports like river tracing, rafting, and cave exploration, as well as daily travel and business trips. This durable bag features a robust TPU waterproof coating, a roll-up cover for superior sealing, and multiple storage options, including a waterproof front pocket and side water bottle holder. With its comfortable three-dimensional ventilation design and secure storage compartments, this 20L capacity backpack is your ultimate companion for both adventure and everyday use!