Up for auction is this preowned Timbuk2 classic messenger bag in their medium size.  See the Timbuk2 website for the exact dimensions.  The bag is in nice, used condition.  I believe the outside material is Cordura fabric in Red & Navy color.  The interior is the standard grey from the company.  The bag still has lots of life in it, just trying to make some additional room around the house by getting a jump on some spring cleaning.  Let me know if you have any questions about the bag and I will gladly answer them.