No....THe 'THHN SimPull' is printed in large, easy to see/read white lettering on one 'face' of the conductor, which lead me to believe that it was ONLY 'THHN' insulation.
Factory Engineer said '...the THWN rating is on the backside'. The 'THWN' is on the backside, but it's in a dot matrix type pring, faint, and very hard to read.
My point was and is....why not use the same lettering and print color for all the info? Does SimPull THHN/THWN sound all that bad??
Bottom line from the factory was 'the bold THHN SimPull is to help the supply houses'