The most versatile cushion you'll ever own! The Game Day Heatable Seat Cushion is a revolutionary new cushion that retains heat for up to six hours and cooling for up to 4 hours. Forget those cold bleachers, simply remove the MicroCore Element and place in a conventional microwave oven for a few minutes and you have a super-comfortable heated seat. It can also be chilled in a refrigerator or freezer over night during the hot summer months. Can also be used as a cooling and warming pack for your sore back, head and other areas. full description »