For the past 8 months I've been riding with a soft textile tailbag strapped to the back luggage rack. Seeing the advantages having secure, waterproof, and lockable storage always appealed to me. However the size of the OEM top case and aftermarket products available did not appeal to me. Seeing a few images of members mounting Pelican cases on their bikes I decided to go that route. I know Caribou sells a mounting kit that could be adapted to the Multi, but for a quarter of the price with stainless steel hardware I bought at Home Depot I made my own mount. I selected the Pelican Case 1400, to me this was the perfect size. Not too big, not too small. Fits all my essentials: bottled water, couple bags of mix nuts, a micro-fiber cleaning cloth, medium can of plexus, wallet, keys, phone, tool kit, a hat, and room to spare for whatever else I need to stuff in there. The case is also secured from the interior with wing-nuts therefore easily removable if I so needed.