Gore Bike Wear carefully considered every element of the Power Trail Jersey to create one of the best designed mountain bike tops that we've seen. The synthetic main body fabric is lightweight and moves moisture efficiently away from your skin to the surface of the fabric to evaporate. The pockets, neckline, cut, and fit were all carefully designed to perfectly accommodate the mountain biker for both comfort and style, on and off the bike. The Power Trail's front zipper allows you to dump heat quickly when you need to. When zipped up, however, the close fit collar keeps everything snugly in place. The concealed front zip pocket takes care of the essentials, such as your keys or media player, and the 3 compartment back pocket stores your snacks. The back pocket is also slightly tapered on the side for easy access on the bike. Gore Bike Wear also included reflective trim on the back to make you more visible in traffic in case the ride runs a bit long.