Wet Separation Design: There is a separate pocket for your wet towel and clothes, keeps them away from other stuff_x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_ Breathable Mesh Design on the shoulder straps and backside makes you feel comfortable while carrying the bag_x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_ Reflective Strip on the bag can reflect the surrouding lights, ensure you travel safe at night_x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_ Safety Buckle not only fastens the straps, but also has a whistle on it. You could send a distress signal when you're in trouble_x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_ There is a side outlet for your earbuds cable and charging cable_x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_ Two-Way Zipper with Anti-Theft Buckle