I recommend the Element Liquid Case...
There is another thread going about the Element Liquid case.
https://forums.macrumors.com/threads/599060/
This is sort of what I was thinking of. But there are three problems with the Liquid case:
1) You need a screwdriver to get the phone in and out of the case. Too much work for something I use sporadically.
2) The lid is only attached by a few magnets, and it's loose. It takes two hands to take it off and either hold it or snap it on the back. I'm sure I'd lose it eventually.
3) It's $99. The quality of construction might justify it, but geez...
If they made a version the iphone just snapped into, with some type of lid flip mechanism, and half the price, it would be perfect.
I recommend the Element Liquid Case. I've reviewed my fair share of cases for my blog, and this is the best, by far. There are some pictures there, too.
Also, to address your concerns:
1) They include the allen wrench in the packaging if that is an issue. Honestly, I like it, because it keeps the phone locked in tight. That keeps it from rubbing and scratching. Unless you are the kind of person who is always removing their iPhone case, I really don't think it would be much of an issue.
2) The magnets used for the lid are strong enough to keep the flip lid secure inside a bag or purse. I am positive you won't run into any problems there. Also, when you are using the screen, the flip lid can be affixed to the rear of the case, just like how it is on the front, so that you do not loose the flip lid. Also, you can remove it with one hand. This sounds overly complicated, but its really a matter of sliding your thumb between the flip lid and the iPhone, then pushing up. Then, it just un-latches.
3. Yes, it is pricey, but in my opinion, its worth it. First, the craftsmanship and quality are REALLY good. Second, the level of customization is unparalleled, between the colors, and custom logo options. Third, this case is a tank, and is the only case you will ever need. Seriously, I could throw it across the room, and then run it over with our car, and the iPhone would be as pristine as when I screwed it into the case. Finally, they are scheduled to go into full production soon, which should result in price decreases. I know what you all are thinking, and no, I do not work for Element Case. I just reviewed it for my blog.
Get it here:
http://www.elementcase.com/index.php/liquid
My review here:
http://mactipspodcast.com/the-liquid-case-by-element/
Honestly, this is the only flip case that I can recommend 100%. If this still doesn't do it for you, than may I suggest:
DRO Carbon Fiber:
http://droconcepts.com/
Bodyguardz:
http://www.bodyguardz.com/
Invisible Shield:
http://www.zagg.com/
Any SwitchEasy case, they are all good!
http://switcheasy.com/
At the end of the day though, if you want good quality and durability, you have to pay a bit of a premium.
Good luck!
