The Polar Mitten Camera Case for JVC GY-HM800 & 850 Cameras from Porta Brace is a very thickly padded cover to keep your JVC GY-HM800 & 850 Cameras camera warm and dry. In cold climates, this system will also prevent condensation when it's brought inside from the cold. Tested to -50°F, it can be used hand-held or tripod mounted. Fleece-lined sleeves keep you comfortable during filming. The high-loft, heat-reflective insulation contains air-activated warmers that keep the camera warm. An insulated lens cap guards the front lens element. A center tripod access makes it even more usable and flexible.