adjustable design for multiple weight options. Multiple adjustment points with buckles ensure a comfortable fit for both men and women. Reflective strips: Reflective strips on the front and back enhance visibility in low-light outdoor activities. Versatile: Adds resistance for running, walking, jogging, strength training, and bodyweight training. Comfortable fit: Thick shoulder straps and breathable fabric ensure comfort and stability during high-intensity training. Durable: Made with high-strength fabric and reinforced stitching, it maintains its shape even after repeated training sessions. Weight: 13.42 lbs.