• 【Lightweight】AONIJIE undershirt backpack weighs only about 130g, very lightweight, to provide you with comfortable and convenient travel conditions in the outdoor sports, will not add any burden for you!
• 【Thoughtful Design】Designed with reflective strips on the front and back, this sports backpack vest improves visibility and safety at night or on cloudy days, allowing you to exercise more safely
• 【Breathable and Comfortable】The soft mesh back accelerates the airflow and is made of lightweight mesh with superior moisture wicking properties that will keep your back cool
• 【Multiple Pockets】Multiple pockets design allows you to store some important items, the front pocket can hold your cell phone, keys, etc., and the back pocket can hold a water bottle to keep you hydrated at all times.
• 【Adjustable】Bust fit range: 78-110cm / 30.7-43.3 inches, Adjustable chest strap allows for a perfect fit for your workout, so you can sports and run freely!