Washlab denim skirt size 30

Washlab denim skirt size 30. Two fabrics on this very cool skirt. Denim on top and Lyoncell on bottom so soft bottom. I took the tags off when I got this in mail from wash labs but I never wore it because it’s too big. This must run large because I will need a 29 instead and I’m a size 8/10 or medium in most skirts and in blue jeans I wear 30 or 31 — so this 30 is too big. And it’s very stretchy. I love this skirt! Color is closer to my pics denim blue.