Extend your season with the C5 Gore Windstopper Insulated Trail jacket. This close-fitting piece is so low-profile you'll hardly notice it's there, except to appreciate the breathable warmth it provides. Its PrimaLoft Gold Active insulation helps trap in heat while the synthetic material wicks away perspiration to minimize chills as you work up a sweat. A Gore Windstopper membrane deflects wind and light precipitation without trapping in vapor--keeping air flowing while protecting you from the elements.