Hi there, we're making very high quality canvas shoulder bags and would like a traditional leather alternative for straps and buckles. We're looking for something as close as possible to Dark brown 3cm wide, 4mm thick grade 1 leather. We're a bit concerned about how we'd do the cut ends as biothane looks hollow which wouldn't finish the ends well? We'd be very grateful for some samples and could be a high-volume customer if the product works for us. Many thanks!