I wouldn't touch them, the seam that is right by then will come apart of you do. It's up to you if you want to risk that and if you think you can do without that seam.
Disclaimer : This post written by a Grumpy Old Man
Actually in the pipes:
- Remaking Ser Loras doublet.
- Luke Skywalker, A New Hope
- Wind Waker starter costume in swim material
Eventually: Paul from Dune, Faramir, Harry Sullivan