Labelled Ted Baker size 4, which the TB size guide translates to a US 10. 

The Rosaley skirt from Ted Baker presents a full-bodied, midi-length silhouette in a box pleated design. Featuring the blooming Chelsea Gray floral print atop alternating panels of semi-sheer tulle and densely-woven stripes, the high-waist style embodies the label's charm and elegance. Fully lined for coverage, it's topped with a grosgrain ribbon sash. Exposed rosegold tone back zip. Slip pockets!!

Approximate measurements taken flat:
Waist 15.75"
Length 29.5"