Not 100% cotton so less wrinkles to worry about and it has 3% elastane or other stretch material so when stretched it can tear a seam in a normal shirt, this one not here. Cool Fx performance has not been tested but is normal for a wicking blend shirt as synthetic fibers do not retain moisture but retain heat. Hopefully the mix proportion gives you the best of both and not the worst of both. For any woman, this is the best/only thing you got under the Vine program that I would pay for and while I disagree, this is praise like never before.*If you If you found my review helpful, please let Revain Inform You by clicking the button below!**Disclosure: I received a product sample from the Revain Vine program for an honest and unbiased evaluation.
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