Edelnice TrachtenmodeExclusive Designer Midi Dirndl Royal Blue Gold with Beautiful Apron and Charivari Size 32-54

Is a sizing chart available? amazon only provides a generic one. the edelnice website has sizing but i'm not sure how to convert to us sizes.

I wear size 10 in dresses that fits comfortably. Since Dirndls need to fit snugg should I wear a size 8?

My girlfriend is a size xl, so what size is that in numbers?

I am 5'2 inches and weight 131lbs what size should i order ? and i normally wear a size 7 /8 ...thanks in advance.