While these tanks easily stand on their own, our in-store customers are always asking us for lightweight tanks to wear under jackets and cardies -- pieces that won't add too much bulk, or too much warmth, to their look. We've found the perfect solution in these 3 Potato tanks. They're crafted in a lightweight woven viscose, with a short funnel neckline and a moderate A-line silhouette. While 3 Potato typically runs quite generously, we find this tank runs more true to size.