Handily stowing in its rear pocket, the Mavic Men's Essential Wind Vest is readily deployable when you need an extremely lightweight, wind-blocking barrier from brisk breezes and chilly winds on the road. It's constructed of Mavic's Dura Wind SL fabric, which provides windproof protection along the front of this vest as you ride into the breeze. Also, this fabric is water-resistant, beading off light showers and drizzle, ensuring you're not wet and shivering-cold with significant mileage left to finish your ride. The rear panel features a stretch insert for unrestricted movement, plus there's a dropped rear hem for a better fit in the aggressive cycling position.