Genesis™ 2000 collections have a robust, 8.5 mm gauge that consists of three primary layers: 2.0 mm LVT top layer that matches the look of natural textures, while providing durability & comfort; 5.0 mm ISOCORE Technology™ - extruded, closed-cell, vinyl structural core that’s 100% waterproof, rigid, strong, and dimensionally stable; and a pre-attached 1.5 mm underlayment that minimizes sound, provides warmth & comfort underfoot, and helps conceal minor subfloor imperfections. Genesis 2000 collections feature FX3 Surface Protectant™, an advanced finish that provides the ultimate in abrasion resistance & stain repellency and also inhibits the growth of odor and stain-causing mold & mildew. Genesis 2000 collections come with a lifetime residential / 15-year commercial limited warranty and are phthalate and formaldehyde-free.