Re-energizer is the "next generation" SpongeCote mat with a techno-designed domed surface as well as unsurpassed comfort and durability. The flexible domes combine with the Nitricell sponge base to provide an uplifting ergonomic experience for the standing worker. The domes provide an extra level of resilience while the sponge base provides consistent softness underfoot. Available in solid black or high tech metallic gray. This mat conveys a modern design and offers upscale performance in any commercial, industrial, office, retail or laboratory/pharmaceutical environment. Five-year limited warranty, the best in its class