I like the Seidio ones. Perfect fit, and they last a good while. Easy to remove without damaging anything and easily cleaned and reapplied. I have one that's over six months old installed and save for minor wear should be good to go for at least a year. I get them thru an ebay store
Here because they're a little cheaper than direct from Seidio and take paypal.
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Former Windows Mobile enthusiast and developer, now a modder working on Android. I still have my PPC 6700 and HTC Touch, but I'm rocking a OnePlus 7 Pro