Tim wrote a review of prAna Stretch Zion Convertible Pant - Men's on June 14, 2012
The only pair I could find that don't look like boyscout shorts when unzipped. Super comfortable semi strectch fabric and feel very well made. The only thing is these are not super light nylon like hiking pants and may get warm, so perfect for cold early morning starts and warm days. For hot weather you may want to go lighter.