Stay cool in the heat. Even with the windows down or the AC on, the small of your back can become sticky and uncomfortable on hot days. The 12 V Cooling Lumbar Cushion features a removable and adjustable fan that offers personalized comfort in all seasons exactly where you need it. Plug the fan into the 12V in your vehicle and you will no longer have to suffer in discomfort on hot summer days. The ergonomic design of the lumbar support flexes to fit your body and keep you comfortable. When the weather cools down, simply remove the fan but maintain the support of the breathable mesh lumbar cushion.