This womens bike top has been tested to cope with any condition you throw at it an essential mountain biking top for the woman who wants to be comfortable and stylish while riding hard and having fun this seamless lightweight base layer is made from 100 merino sports wool its natural wicking properties make it perfect for a day on the trials and the toughest of commutes while it39s stylish design doesn39t look out of place for that post ride cake and coffee stop performance feature