Made from high-quality oxford and polyester, it has a soft zipper and a breathable mesh back panel for lightweight, comfortable and durable.Adjustable ring type adjustable opening and closing, freely adjust the length of the strap, reduce weight load, effectively protect the back and shoulders, and make your life more comfortable.Perfect for everyday use, excursions, etc. A great backpack for sports, travel, hiking, shopping, camping, or other outdoor activities.