Thank you all for the replays!
Indeed, the Shadow Touch boots increase "Fatigue"(the green bar) by 18 pts. not the "Endurance" attribute(which would have made it one of the most awesome artifacts in the game - as endurance is very important).

Thanks again for all your help

Hi all, First of all - an amazing mod. I'm already 20 hours in and enjoying every minute. this is truly a triple A title. I have a problem - I found the "Shadow Touch Boots", which has the following enchantments: * Fortify Athletics 6 pts * Fortify Endurance 18 pts (according to the game and nehrim ...