Gore alp x pro windstopper zip jersey designed specifically for mountain biking the award winning alp x pro is an extremely versatile option for all terrains and a range of weather conditions with windstopper technology detachable sleeves and a host of other great features the alp x pro is a worthwhile investment for maximum performance the alp x pro is cut with a tight race fit this is the ideal fit for fast paced training or marathon racing stretch fabric and raglan sleeves allow tota