Helinox Fleece Seat Warmer Fitted Chair One HB Black. Designed to fit Chair One Chair Zero Incline Festival Chair & Swivel Chair. Provides soft warmth extra cushioning and draft protection for cold outdoor adventures. Specifications for Helinox Fleece Seat Warmer Fitted Chair One HB: Manufacturer: Helinox Color: Black Gender: Unisex Age Group: Adults Application: All Purpose Fabric/Material: Fleece Package Contents: Helinox Fleece Seat Warmer Fitted Chair One HB Helinox 10003378: Fleece Seat Warmer Fitted Chair One HB Black