I'm looking for A case that has these key features

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Is there a case out there that doesnt add alot of bulk and can be used with a holster such as the Seidio Active case that also has plugs/covers for the plugs and ports such as the Otterbox Defender Case for our phones?

Take a look at this Body Glove case from T-Mobile. I have the case and it doesn't add as much bulk as the Seidio Active. And it has an option to put on a belt clip or a piece to plug up that hole.

http://www.t-mobile.com/shop/AddOns/...tCode=21&qty=1

had a body glove case for my previous phone, dropped it once and the case flew off. I then told myself i'd never buy one again. I even read a review for the same case that you suggested. The person said it flew off after being dropped just like the one for my previous phone did.