Zenana Outfitters Women's Racerback Rib Tank Tops, 3- Packs Zenana Outfitters Women's 2pk&3pk Racerback Rib Tank tops 92%Cotton 8% Elastane Essential item to complete your wardrobe. Excellent alone or as a layering piece. Good for lounging, running around or a light work out. Machine wash cold with like colors, do not bleach, hang to dry.