The Mobile Warming Premium Bluetooth Heated Insoles by Fieldsheer are designed for men in size XL (10.5-12). These heated insoles come in a 2-pack and feature wireless Bluetooth technology, making them convenient for outdoor activities like skiing, ice fishing, and hunting. The insoles are perfect for keeping feet warm and comfortable in cold weather conditions, providing extra insulation and warmth during winter sports activities. With a focus on performance and activity, these insoles are a must-have for anyone looking to stay cozy and comfortable in the outdoors.