Very very slim indeed.
Put these in to my ExtraTuff rubber boots for winter wear/warmth.  I used to get them all the logging store but because of covid i got them in mail.  Wish i would have gone and pick them up!  These are a so thin i put 2 pairs in my boots.  Still not as thick as the old ones i bought in the past.  They are warmer than having nothing in my boot, that said, i would look for a thicker wool insole next time and recommend your do the same!
Rating: 3 stars