... If a "Stitched" edge is to be used, ideally good quality, and fairly heavy thread should be employed ( Blanket Stitched ). With the stitches close together. ..... If a Tape Edge, well it would be interesting to see what material is actually available. Ideally, the Mill, should be able to advise as to what works best for Outdoors and Heavy Duty Applications. ( Military use, Mining and Logging type Camps require durable products, as does the Antarctic ) .... Pricing is going to be a challenge IE Heavy weight, good quality in both the material and the trim, and yet remaining "Cost Effective". And that's before one considers shipping costs, to both the Supplier and the Consumer . ........ David K