Military hiking backpack with bottle holder outdoor double shoulder bag supply, designed for outdoor enthusiasts. This backpack is made of high-strength material, which is wear-resistant and durable, and has a waterproof function to ensure your equipment stays dry in all weather conditions. The backpack is equipped with a suitable bottle holder for easy carrying of water bottles, keeping you hydrated during hiking. The large capacity design is suitable for various occasions such as hiking, camping, and travel. It is both practical and comfortable, easily coping with various environmental challenges. Whether for daily use or extreme challenges, this double shoulder bag is your ideal choice.