I use my otter box( well otter box knock off that is only 5 bucks instead of 50) case and the belt holder attached to my shoulder strap on my pack. I took the stupid big plastic POS actual clip off and screwed a regular spring steel one off an old tape measure in its place. Much nicer and tighter to your body, even when in normal belt use. I do have a mini bungie I use to make sure it doesn't pop out. Gives better cell/GPS signal than in pocket or in the bag and MUCH safer in a crash than mounted to the bars. Only down side is you can't view it while riding. But I never do anyway, again I don't give a crap about stats and if I use the map I'm stopped anyway.