Warm up to winter.The fleece-lined Gore Bike Wear Power Trail WS SO Jacket extends your singletrack season well into late fall or even early winter. The windproof Windstopper main body fabric is extremely breathable to allow your body to regulate its temperature naturally while it fights off Mother Nature's insidious attacks. The jacket's anatomic cut is designed to drape comfortably on the bike and off, so you can wear the Power Trail jacket during your ride and at the pub for your post-ride beer. Due to the effectiveness of the WindStopper membrane, Gore has included a strategically placed venting zipper and two front ventilation zippers with integrated zippered pockets in order to give you the ability to moderate your temperature. Perhaps the only detail that gives the Power Trail jacket away as a cycling piece is the zippered pocket on the back. There's also a zippered Napoleon pocket on the left breast and small cloth for cleaning your eyewear. The tail is cut a tad longer in order to accommodate your position on the bike, and the lower hem and sleeve cuffs are bound with a simple and comfortable Lycra band. Reflective elements on the shoulders, back, and forearms will also increase your visibility to motorists in low-light conditions.