Meet FormKnit. J. Crew's softest stretch fabric forms to your body (hence the name) and stretches in four directions for a comfy, flattering fit. Plus, it's double-layered, so it's never see-through and extra-smoothing. We designed it in a couple of sleek silhouettes, like this cool one-shoulder tank that instantly elevates anything you pair it with. And that's not all... it's crafted with a touch of TENCEL™ Modal (an eco-friendly fiber sourced from sustainably managed and certified forests—meaning not ancient or endangered!). Modal® TENCEL™/elastane. Machine wash. Import. Body length: 21" from collarbone.