Kurt made custom pouches for the custom longtail frame he built. The material used is what you usually find in fold-out couches– super sturdy! The top of the rack is plywood. Here’s he hauling two printers, a scanner, a keyboard and various other supplies.
Right now the two sides of the pouch are just tied together with string. He may upgrade those connectors with small caribiniers. The current design also lacks a frame to hold the pouches away from the wheels and derailler. It’s working OK without them, but wil also likely be evolved.