The RQM-OB1 Mountaineering Backpack, crafted from eco - friendly waterproof Oxford fabric, is built for outdoor adventures. Sized at 50×29×18cm, it features reflective fluorescent strips for safety, double - headed waterproof zippers, reinforced shoulder strap buckles, and a highly breathable back mesh. Ideal for hikers, it combines durability, functionality, and safety to carry gear for 登山 (mountaineering), trekking, and outdoor exploration.

The RQM-BP5 Minimalist Business Backpack, crafted from polyester fiber, blends sleek style with smart functionality. Sized at 45×30×12cm, it features dual - side expandable water - bottle compartments and a hidden security pocket on the back. Ideal for business commutes, it offers organized storage for laptops, documents, and small essentials, combining minimalist aesthetics with practical design for professionals on the go.

The RQM-BP4 Expandable Commuter Backpack, crafted from water - repellent Oxford fabric, offers flexible storage with a 30×45×(16cm expandable to 26cm) size. Expanded, it rivals a 20 - inch trolley case in capacity. Ideal for commuters and travelers, it features an independent laptop compartment, document pockets, and a daily clothing bag. With its smart expandability and organized design, it blends practicality for work and travel needs.