Black & Gray Snake Print Skirt 30" Waist Size 8?

Black & Gray Snake Animal Print Skirt 30" Waist Stylish skirt, I love the zipper detail on the front By Open Market Very good, pre-owned condition ***Tag cut so going by 30 inch waist measurments I am guessing a size 8. I can't fit, I'm a size 10*** Waist: 15 1/2" across Length: 16 1/2" 100% polyester