I'm not familiar with that brand of clothing, but I think most pants patterns have the back eased in the upper inside leg, don't they?

Yes - I've made a number of pants that called for ease on the inside leg seams - @ the top of the seam (crotch area between the kness basically), not the lower leg.

1/2" seems a lot tho - are you sure it didn't stretch out?

No, I was very careful not to stretch the material. I will rip the seams and
ease the material on both legs within the notches to see what happens.
After looking again at the pant leg I did not rip out, that is how
the pants were made, eased.

Thank you for your help.

Sorry - I take it back - it's been so long since I sewed eased pants legs.

I thought about it some more, & 1/2" ease is probably just right.

Oh & you're welcome = )