Technogel Ergonomic Cooling Polyurethane Gel and Memory Foam Cushion Seat Pad EASE SACRUM AND COCCYX PAIN: Ergonomically designed to support proper posture and offer extraordinary comfort during the most ordinary activity - sitting. Set the seat cushion below your tailbone, and that makes one less pain in your day! COOLING THERMOREGULATION: Technogel is a thermal conductor by nature, helping to disperse your body heat so you enjoy a refreshing cool feeling and stay relaxed and focused on the task at hand. ZIPPER COVER: A durable cordura zipped cover adds a layer of breathable protection. Remove it any time for a gentle cleaning. ERGONOMIC PRESSURE RELIEF: Adapting like water but with the support of a solid, Technogel reacts uniquely to your body to ease pressure. Molding this unique gel with memory foam creates cushions that help give you the healthy support you need. A HEALTHY CHOICE: Technogel is the only polyurethane gel made without plasticizer oils--it's non-toxic, virtually odorless, and resists hardening or softening due to temperature or age. It's a biocompatible and resilient patented soft-solid gel.