ProVest II features Prolar™ padding to protect the upper chest and shoulders from kickbacks. Prolar protective pads combine a unique fiber composition with special weaving to create one of the most effective chain saw protective pads on the market. The unique “explosive” action of Prolar works by jamming the chain against the bar and the sprocket. This sleeveless vest, with mesh back and open sides, keeps workers cool in hot, humid conditions. The outer fabric is a water-resistant, breathable 65/35 poly-cotton blend. Vest features numerous pockets and can be worn over most heavy coats.