High-quality nylon, sling backpack bag is made of high-quality Water Resistant nylon, which is strong, sturdy, water-resistant and anti-scratch. Double zipper pocket,sling bag comes with multiple pockets a perfect size to hold your wallet, cash, phone, any essentials in everyday life. Night reflective design,this bag on your back provides protection for running and cycling at night,this bag on your back provides protection for running and cycling at night. There are several separate compartments to prevent items from scraping each other inside the bag.The back of the bag has a breathable mesh, which is more breathable and suitable for sports.