NWT. Joah Brown invisible zip tank top. Joah Brown's innovative tank top is where the softness of FLEXRIB® fabric meets the adaptability of a full-length zipper. This top promises to keep pace with your lifestyle, ensuring comfort and versatility are always top of the agenda. 90% Rayon, 10% Spandex FLEXRIB® Ribbed Fabric Crewneck Invisible Zip Closure Machine Wash Cold Made in LA