Presale Only. Presale will be open through Sunday, July 31. Orders will be shipped by August 31.. This black and grey criss-cross tank is made in our signature Tencel and organic cotton blend. An asymmetrical hem midi dress is also on presale!. Material. 66% Tencel. 28% Organic cotton. 6% Spandex. Care. Machine wash, cool. Do not bleach. Tumble dry low. What is Tencel?Tencel branded lyocell and modal fibers are produced by environmentally responsible processes from sustainably-sourced natural material, most often eucalyptus wood.  Tencel fabric widely used in sustainable fashion for its soft and luxurious feel.