STYLETHREAD -- LET'S TALK SHOP!

I did a search and didn't find anything about this so maybe it is just me.  I had a blue BCBG sweater turtleneck and it got all these lines going down it like a threading problem.  It looked really bad so I just gave it to good will.  Then this morning I get out my BCBG cardigan and it has the same thing going across one of the arms.  I was acording to directions on cold I even put it on "hand wash delicates" and then hand to air dry.  I have NEVER had this problem with any other sweater or brand.  Anyone??  Do I just have bad luck with them??