Lululemon Essential Tank Pleated

Lululemon Essential Tank Pleated in a "salt and pepper" light grey. I bought this off of here, but it's too big for me :( Tag was taken off by the a previous owner so I'm not sure what the material composition is, but it's a more cotton-y fabric. I'm not sure what size this is supposed to be so please see the measurements. In great condition. No flaws, holes, stains, or snags. Pit to pit: 17" Length (from shoulder to hem): 26" Model photo in the first image is just to show the fit. The version I'm selling is a lighter grey.