As usual 5.11 did its research and used the best materials and is well sewn. Unlike other hats this one with FLEX FIT doesn't have to be adjusted over and over. IT FITS.....PERIOD! With the mesh backing it is a great hat to wear in warm and hot climates and helps decrease sweating. I won't be purchasing hat from any where else but 5.11
This is a very comforatble hat and fits my head perfectly. I searched through all of the hats and picked this hat simply because it was a flex fit. I wish all of the hats were made this way.