Main Materials: Bio-foam,TPR, air mesh, wire mesh, elastic mesh, hook and loop Newest generation of the venerable Fox Hybrid kidney Belt Ergonomically designed PE Plastic/Rubber combination offers maximum stability for torso 3D jewel badge Air mesh for breathability and comfort Wire mesh for breathability and esthetics Vented Biofoam provides comfort along back Dual Straps with rubber grips allows quick adjustability and evenly distributes support Lightweight and flexible design