Warmth where it matters most—right under your toes. The Premium BT Heated Insoles feature an ultra-thin design that fits easily into any boot or shoe and can be trimmed to size for a custom fit. A single heat zone targets the toes for lasting warmth in cold conditions, and Bluetooth® control lets you adjust the heat with ease. Perfect for snow boots, workwear, or any footwear built for long days in the cold.