Per Amazon The bag is made of waterproof oxford cloth, and protects your things in good condition even on a rainy day. This leisure pack is lightweight, will not cause a burden on the shoulder, and can be worn as a shoulder bag or cross-body bag as you choose. Designed with a main pocket + 2 side pockets + 1 front pocket, wallet, mobile phone, power supply, glasses, etc. Inner compartments keep gadgets put in order and protected from scratches. Great for travel, commute, working, business, outdoor, leisure or campus, and so on. Adjustable shoulder strap can reduce shoulder fatigue, it can be adjusted to a vertical height 30-60cm.