Here's a tag from the top
Here's a quick pic of what it looks like. They have crew neck and zip up available.
If you go into the back area (where the Carhartt's usually are) they are in the very first aisle on the right in the bins (at least for men - I think women stuff is on the other side).
I was warned by the cashier that you shouldn't stick them in the dryer because they will melt. They are terrific at wicking away water (perspiration)