Well I`'ve made kilts out of booth the big diferene is the breaths a bit better but I wear pv allthe time and I have to say I never have any problems with the heat I mainly wear kilts between 8-10yrds depending on the sett size.Now is the 11oz wool a loose weave as it may not hold its shape well , I find the PV always hold it shape, are you making thre kilt, or having it made for you?