Heated Boat Blanket by SurfinityMade from a high quality windproof and water resistant honeycomb nylon exterior with a specially formulated heat resistant coating that prevents the loss of body heat while utilizing the onboard boat heater hose to keep you toasty warm. Integrated flow channels allow for the air to move evenly throughout the blanket. The thick Polar Fleece on the inside will raise your core temperature in no time. *Only works with your existing boat heater hose.