Chan Luu Skirt-Size Small

I can't find size on the skirt anywhere but I compared it's measurements with another I saw online and I can fairly certain say its a small. As long as the measurements match what you need, that's what's important! SO, the waist is 28. It has a tiny bit of stretch but not much bc of the sequins. Maybe 1/2 inch. Length is 12.5. The side zipper is 6 inches.