I'm looking to replace a whole collection of Tee's because I've lost weight.  I wear Tee's just about every day so I probably have at least 40 that are getting to be too big.  Buying this shirt was educational for me because the Amazon description definitely says that the fabric weight is 5.5 oz.  What I found out is that 5.5 oz is way too thin for what I want in a Pocket Tee.  Barely thicker than an undershirt.  If you live someplace hot, this Tee might be perfect for you.  But I'm from the PNW, and a thin Tee is not much use, unless you plan to use it as a colorful undershirt.

Now I get to keep shopping but now I can limit my choices to weights heavier than 5.5 oz.  Might take some more trial and error to find what I want.