Elevate your comfort in cold weather with Little Hotties Thermal Insole. These insoles are designed to keep your feet warm and cozy, no matter the temperature. Here's what sets them apart: The one-size-fits-most design is incredibly versatile, fitting sizes from US Women's 6 up to US Men's 12. Plus, they can be easily trimmed to customize the size and forefoot shape, ensuring a perfect fit in your favorite footwear. The multi-layer design is the secret to their efficiency. These insoles combine the unique warming properties of various materials to create an incredibly efficient thermal barrier. At the core is a reflective Radientex layer, which reflects your body's natural warmth back towards your foot while blocking out ambient cold air. The felt material layer is durable and maintains its superb thermal regulation even after repeated use. On top, a brushed felt layer wicks moisture away from your foot for added comfort and won't fray easily, ensuring long-term warming performance and overall comfort. This top layer also provides exceptional cushioning, making them ideal for standing, walking, working, and more. These insoles are heat-rated to -13°F, providing lasting comfort and aiding in thermal regulation even in the coldest environments. Whether you're braving the winter chill or adding extra insulation to rubber boots and rain boots, these insoles are a simple and convenient solution. Their low-profile design, measuring only 1/4-inch thick, allows them to fit comfortably inside most footwear, ensuring you stay warm without sacrificing comfort. Choose Little Hotties Thermal Insole for the ultimate in thermal footwear comfort and warmth.