From the Protect-A-Bed Originals collection, the white Allerzip Smooth mattress protector is the gold standard in mattress protection and provides complete protection for your mattress. With the Miracle Membrane® embedded within each side of the encasement, the Allerzip Smooth is waterproof, machine washable, bedbug entry/exit/bite-proof, anti-allergenic, and prohibits the growth of bacteria. All while allowing air to freely pass through every side of your mattress.