Equipped for cool weather runs and spirited rides down chilly trails, the Patagonia Women's Fore Runner Zip Neck Long Sleeve Jersey adds a touch of warmth without stifling you during high octane activity. Lightweight recycled polyester wicks moisture for the utmost in active wear comfort, while the 10 inch zipper facilitates extra ventilation when you're working up a sweat. Additionally, the soft chin guard prevents any scratchy or irritating feel when it's fully zipped. Polygiene odor control prevents the build up of funky microbes throughout the life of this performance top. Other functional features include minimal flat seam construction for a smooth, non irritating feel, set in sleeves for freedom of movement, reflective details for boosted visibility, and a UPF 15 rating for protection from harsh UV rays.