Features: Made from oxford fabric, wear-resistant and water-resistant. Adjustable shoulder strap is helpful to distribute load efficiently and reduce fatigue. Smooth zipper with drawstring is more nice and useful. Suitable to be used in daily life or outdoors for a long time. High grade buckle is heat-resistant, cold-resistant and serviceable. Using breathable mesh sponge on backside, more comfortable for you to carry. Earphone hole, more convenient for you to listen to the music.