Features and benefits: The flowable you can use with confidence Filtek Z350 XT Flowable Restorative is a low-viscosity, visible light-cured, radio-opaque flowable nanocomposite. Filtek Z350 XT Flowable uses the same unique nanotechnology as Filtek Z350 XT Universal which provides excellent aesthetics, unsurpassed polish retention and low wear. Shrinkage has been reduced by nearly 20% compared to Filtek™ Supreme XT Flowable. Filtek Z350 XT Flowable is available in shades (A1, A2, A3, A3.5, A3, B1, B2,) matching the VITAPAN Classical Shade Guide and Filtek Z350 XT Universal.