Introducing the Faded Organic Rib Tank in a slim fit. Crafted from heavy-weight 9.7 oz fabric with 95% organic cotton and 5% elastane, it features wide binding, and a double-needle hem. Introducing the Faded Organic Rib Tank in a slim fit. Crafted from heavy-weight 9.7 oz fabric with 95% organic cotton and 5% elastane, it features wide binding, and a double-needle hem.