Sansabelt Pants wrinkles

[Texas Aggie]

I have a pair of SB pants I got late last spring in time for camps. Wore them to, I think, 3 days worth of camps (over a month and a half or so), then hung them up. Got them back out for the season earlier this month and started wearing them again. Recently bought a couple of other pairs that I've mixed in.

Anyway, the old pair wrinkle like crazy and hanging them up for a week (which I did over T-giving) didn't help. You can't really iron these things, and I never had SB pants wrinkle in the past. The new ones wrinkle a bit out of the wash, but hang for a day and lose the wrinkles. Also, the crease isn't as sharp as the new ones.

I have to wash these pants after every wearing and do so on warm water. I do not dry them in the dryer, but hang dry them. I've worn them probably 12-15 times and washed them that many. If this is normal, they deteriorated very fast.

Did I just get a bad pair or are others having similar problems?