The 634s I don't think are worse than any other pair of jeans due to the fact that the 23oz denim is really quite breathable. I think the 666s will be less comfortable both because of the slimmer fit and more rigid denim but I haven't had them long enough to know for sure.
The 634s I don't think are worse than any other pair of jeans due to the fact that the 23oz denim is really quite breathable. I think the 666s will be less comfortable both because of the slimmer fit and more rigid denim but I haven't had them long enough to know for sure.