Soft and resilient memory-foam cushion is pressure sensitive to help relieve stress points. Smart gel-cooling layer helps provide additional comfort by dissipating heat. Non-slip under-cushion surface keeps the cushion firmly in place on your chair. Outer cover is made of long-lasting, fade-resistant fabric. Fabric Cover with Non-Slip Under-Cushion Surface. General Category: Seating Accessory; Sub-Category: Backrest; Temperature Control; Color(s): Black; Color Family: Black.