Wool& Sierra Tank Dress Blue Size 2X. Cut from midweight French terry fabric, this sleeveless, A-line silhouette dress is the perfect transitional piece. Complete with patch pockets and a crew neckline, you'll want to lounge in it as much as you wear it out. Cozy has never been so cute. Sizing Tip: The Sierra Tank Dress is swing fit. Fitted around the chest, then flares into a roomy, A-line silhouette. Gentle use, great preowned condition, see photos for details and approximate measurements.