1. Both fashionable and practical.
2. A luminously-ornamented lines on a backpack make it noticeable, protecting against danger, such as a vehicle.
3. It is designed to feel comfortable, by putting sponge in layers of shoulder and back, especially by attaching weight-dispersing belts around chest and waist.
4. Its simple design offers much space to put stuff in.
5. Gauze pockets make it convenient to carry and take out frequently-used objects easily from a backpack.