NWT This V-neck tank top is crafted from 365Knit—a machine-washable blend that strikes that perfect balance between stretch and structure. It’s lightweight enough to tuck in, and lingerie snaps in the straps ensure that your bra remains out of sight. Eco 365Knit styles are made from LENZING™ ECOVERO™ Viscose. Composed of wood-based fibers sourced from responsibly managed forests, this eco-conscious fabric is produced through a process that has a smaller environmental footprint than traditional viscose.