Cooke Custom Sewing Sled bag. Inspired by a famous Czech explorer, it is now available to the masses from Dan Cooke. Besides, Dan stitches are lot straighter, his craftsmanship impeccable and cost reasonable. Made of 1000 denier Cordura with heavy duty zippers and buckles it will last you a long time if not life time. Available from http://cookecustomsewing.com/. The pulk is by someone else in St. Cloud.