Poc essential avip light jerseythe essential jersey with 4 way stretch fabric is infused with aerodynamic technology in order to reduce drag it is designed to enhance your visibility on the road and has a cut specific for your riding position which ensures all day comfort performance and safety the shoulders and back are made of a woven stretch fabric and uses a compact 3d structure to improve aerodynamic performance the body is made of 4 way stretch fabric that offers a streamlined fit all