From:Compression Medical - Free Ship, No Tax.

The three dimensional zoning design of Geo-Mattress UltraMax for Stretchers provides anatomically-calibrated levels of support and immersion throughout. The extra-soft heel section facilitates immersion to provide added heel protection. UHP 500 Ultra High Performance foam in high-fatigue seat section, and 55% higher support factor yields superior resiliency and recovery. Geo-Matt's segmented non-shearing surface creates individually articulating cells. Ring-of-Air channels dissipate heat and moisture. Large areas of both hook and loop on bottom of mattress help in anchoring it to a wide variety of stretcher models.