The thread has shrunk, unpick and restitch using polyester thread.

That's what I first thought az, but it's still the same after I unpicked it and sewed it again. 

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@lurker172602 wrote:

 

Ok then. This is is obviously a photo of me standing on my head wearing said skirt 

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Mmm, how frustrating for you.  

It looks like the stitches are too tight for the fabric.  

I've discovered that if I stretch the fabric with my hand as it goes through machine it can help.  Is the overlocking tight too? 

My pc is behaving oddly and deleting my comments.

Use a longer stitch length and a newer sharp needle.

The weird thing is, if I showed you the under side it is not puckered at all.  I think the fabric has been damaged somehow.  I don't really think it is my sewing technique.

Do the stitches look even on both sides? It could be a tension adjustment issue. 

to glee

I don't think so.  It looks almost exactly the same as before I did anything.

to az

I did stitch from the underside.  

Anyway, I don't think its worth too much angst.  Maybe I'll just turn it into an excuse to go shopping 

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@lurker172602 wrote:

to glee

I don't think so.  It looks almost exactly the same as before I did anything.

 

 

to az

I did stitch from the underside.  

 

 

 

Anyway, I don't think its worth too much angst.  Maybe I'll just turn it into an excuse to go shopping 

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Has it had much wear?

Yeah, shopping for a replacement sounds good when all else fails.