2-in-1 Solution High Density Foam Construction Ultra-Soft Fabric Cover Non-Skid Base Supports Posture Improvement Compact Design Side-Placed Zipper Premium Comfort Soft Footrest 1 x Warranty Insert Relative Humidity: 90% to 95% non-condensing Operating Temperature: 0 to 40°C (32 to 104° F) Storage Temperature: -35 to 60°C (-40 to 140° F)