Durable Breathable Material - A chest bag made of high-quality nylon is waterproof, durable and scratch-resistant. In addition, the shoulder straps and back are made of breathable material to make you comfortable when traveling, hiking, etc. Large Capacity: You can put your notebook, cell phone, book, umbrella and cup in it. You can even use it to travel and pack your shoes and clothes. There is a net bag on the side to hold a water cup for easy drinking Shoulder/Crossbody/Hand Bag: Our versatile backpack is the zipper strap, it can be double shoulder, (unzipper shoulder strap), also can be crossbody or hip shoulder (zipper shoulder strap), at the same time, there is a handle at the top of the backpack, easy to carry as a handbag. Adjustable Shoulder Strap is suitable for different heights and ages Multi-functional: Sling bag: Weighing just 0.66 pounds, this sling bag is lightweight and comfortable to carry. Can be used as sling bag, sling backpack, crossbody bag, hiking backpack, chest backpack, travel bag, leisure backpack, shoulder bag, very suitable for travel, fitness, hiking, camping, cycling, day trip, office and other occasions. It is a good travel gift. Additional Waist Running Belt - Made of Lycra fabric, soft, and https://offerup.co/faYXKzQFnY?$deeplink_path=/redirect/ can carry Key, Cash, Cards, earphone, passport and small valuables. Professional reflective strip takes care for your safety while running or walking in the dark! With Earphones Hole Design, always having your phone with you while working out