I know there are some Waterfield fans here so I thought I'd try posting this here...
Used Waterfield laptop sleeve in excellent condition.
Waterfield is a premium brand based in San Francisco, see following link:
Exterior dimensions of the bag are 12" x 15", can easily fit 15-17" laptops, and of course anything smaller.
Retails for >$40, selling for $30 shipped.
PM me if interested.