The PROIRON weighted vest is very comfortable to wear due to breathable fabric and multiple anti-slip soft padding, not only for optimum support and comfort, but also for reducing slide at shoulder and back during exercise. Unlike other long weighted vest can only support limited workouts, Our short weight vest have more bending flexibility, better fit the body shape and allow for full range of motion. Our weight vest is perfect for sit-ups, planks, squats, leg lifts that other long weighted vest cannot do. PROIRON weight vest is also equipped with reflective strip, give much safety for night workout lovers. PROIRON weighted vest is filled with chemical-free iron sands rather than using cheap river sand. The iron sand on the front and back is evenly separated on weight vest by multiple divider, ensure your whole body enjoy more balance and stability due to even weight distribution. Our weighted running vest is fully closed stitching, more importantly, running weight vest adopt leak-pro