Manufacturers of modern bike clothing know that mountain bikers have their own style and functional requirements. All bikers who aren't into narrowly-cut racing jerseys can now find looser jerseys with similar functions. Whether that's in the style of a normal t-shirt or as a more casual variant of a classic jersey, these jerseys have clever details such as cleverly-integrated pockets, breathable materials and a cycling-specific fit. There are also extra-wide-cut downhill jerseys which allow ambitious riders to discreetly conceal protectors underneath.