I have tried everything to carry bike to bike tools and wallet. It gets really frustrating when you run out of pockets or the holder is to big for a shirt pocket. On all bikes I have tube attached to the seat but inflator, tools, plugs, etc. I keep on me. That way I know each bike is equipped correctly. This fits perfectly to the pocket. If you bail on the mtb it does not fly out. It combines both a wallet and tool bag. build material is good and when I sweat it doesn't seem to bleed through as of yet. Been really hot lately in the midwest
