Do I have a real otterbox? Read the entire thing please

Basically I have the iPhone 4 and I recently went to my local flee market to buy a case.
I automatically went to the otter boxes. I've heard they are indestructible.
So I asked how much they are and she said they are 30…
I was alarmed because otter boxes are usually 50.
So I asked if it was real. She said "Yup, it's the real deal." (Meaning yes, the case is real.)
So I asked to take a look. She let me look and then she put on the case.
She told me I had a 1 year warranty on the case, which is great.
Pretty much I'm just worried I paid 30 bucks for a fake case.
Flee markets sell fake things, even though the flee market I went to has high end items.
So now I'm talking a closer look.
The plastic piece of the case is gray/silver.
The outside is like a navy blue. (The "rubber" piece)
The rubber piece is rigid and feels like snake skin almost. It has the otterbox logo printed on it.
Then on the inside of the rubber piece it says "Made in China". Which alarms me.
Aren't otter boxes made in the USA?
Then the plastic piece on the inside has this gray foam thing I guess with the otterbox logo on it as well.
Also, it came with this screen protector thing, i don't know. It's like plasticish. I don't know lol.
I don't really know how else to explain it.
It seems too good to be true to pay 30 for an otter box.
So please help me! Real? Not?

Its fake you can only get the real ones on there site which is about 90 dollers

Seems like the case is real! Maybe the reason for it being $30 because it may have been used prior to when you bought it. I wouldn't be saying,"This is too good to be true." So I think the case seems pretty legit to me.