Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Very thin and a strong plastic smell...

I bought this mat for practicing Alexander Technique, not yoga. And I don't have a lot of experience with other yoga mats.But even my untrained eye can tell that this mat is surprisingly thin. I can't imagine it providing sufficient cushioning for yoga. Buy one of the deluxe thicker mats on Amazon instead. I'm supposed to use a firm mat in Alexander technique, but this is just too firm.More importantly, it has a very strong plastic smell. Sort of like what your clothes would smell like if you worked the production line at a Tupperware factory.I admit I'm very sensitive to these things, but the smell gives me a headache. That's not what I want in a yoga mat.It's nice that it comes with a mesh carrying bag. The bag is okay, but I'd worry that after a few months a strap would break.I won't know though, because I'm returning it tomorrow.