The Vevor weighted vest is designed to add fixed resistance to strength training, running, jogging, and general fitness workouts. It features a breathable neoprene exterior with odorless iron pellet filling for stable, evenly distributed weight. Double adjustable buckles provide a secure fit for bust sizes from 35" to 45". Reflective stripes improve visibility in low-light conditions, while front and rear pockets offer convenient storage for essentials.