There are cyclists who swear by their trekking bike trousers. This is because most models are particularly comfortable to wear. If you also want to visit a museum, go shopping or take a short hike on your tour, you can't do without comfortable trekking bike trousers anyway.
Riding comfort and a fashionable leisure look don't have to be mutually exclusive. Women like to wear casual 3/4-length trousers for cycling trips, while men prefer the long version with lots of practical pockets.
Gore Bikewear Countadown Lady, http://www.gorebikewear.de
Löffler Capri 3/4, http://www.loeffler.at
Protective Claire, http://www.protective.de
Sugoi Mobil Ride Capri, http://www.sugoi.com
Vaude Arbon Zip-off, http://www.vaude.com
Gonso Baggy Campos, http://www.gonso.de
Gonso Dakota Zipoff, http://www.gonso.de
Jeantex Cortona, http://www.jeantex.com
Jeantex Palma, http://www.jeantex.com
Löffler10301HR, http://www.loeffler.at
Northwave Dune, http://www.northwave.com
Vaude Harbour Pants, http://www.vaude.com
The full-length article from issue 5/2009 is available as a free PDF download.