Lanston Asymmetrical Turtleneck Tank in Black. - size M (also in XS) Lanston Asymmetrical Turtleneck Tank in Black. - size M (also in XS) 65% cotton 28% tencel 7% spandex. Made in USA. Machine wash. Mockneck one shoulder styling. Ribbed knit jersey fabric. LANS-WS497. L-2028PR. Lanston is a modern, luxurious and affordable fashion basics collection, that provides timeless pieces in a contemporary market. Shop the latest in fashion from Lanston