Proactive Medical Protekt Ultra Bariatric Wheelchair Cushion High Capacity Molded Pressure Redistribution and Deep Pelvic Immersion Seating System Size Option:22" x 20" x 3" calibrated tissue offloading GF 4600 AA PS DO calibrated tissue offloading and oversized compartments that allow first responders to store complete turnout sets without compressing safety components or damaging reflective stripping Warranty Terms: 18 month limited commercial manufacturer warranty against structural defects the cushion integrates a gel infused visco memory foam topper that facilitates deep pelvic immersion and accelerates the dissipation of ambient body heat