Drapey Rib Tank Madewell AMO Long Rib Tank Shopbop Carter Rib Tank Marine Layer Signature Rib Tank Athleta Jones Rib Tank. The Boa Rib Tank is a fitted, sleeveless top with a soft ribbed texture. Its lightweight, breathable fabric makes it ideal for layering or wearing on its own during warm weather. Pair it with jeans, shorts, or skirts for a simple, modern look. Ribbed knit Soft, stretchy feel Lightweight and breathable