Description 1. Dynamic Color Transformation: Experience a truly unique accessory: This balaclava features innovative thermosensitive fabric that dynamically changes color with variations in temperature, including the warmth of your breath. Watch it transform before your eyes, adding a fascinating and personalized touch to your look. 2. Premium Material & Optimal Size: Crafted from high-quality polyester, this balaclava offers a comfortable and flexible fit for various head sizes. It measures approximately 39 cm (15.35") in length and 27 cm (10.63") in width, providing comprehensive coverage for your face and neck. 3. Enhanced Comfort & Warmth: Designed for comfort, this headwear features an internal plush lining to provide exceptional warmth, making it ideal for cooler conditions. The soft fabric ensures a pleasant feel against the skin, allowing for comfortable extended wear during various activities. 4. Superior Craftsmanship & Protection: from advanced four-needle six-thread stitching, contributing to the garment's refined construction and smooth seams. The balaclava also includes an extended neck area for additional coverage and protection against , complemented by elastic reinforced edging for a secure and adaptive fit. 5. Versatile & Fashionable Appeal: Beyond its protective qualities, this balaclava serves as a striking statement piece. Its captivating color-changing property ensures you stand out with style, perfect for outdoor adventures, sports, or simply infusing a distinctive flair into your daily wardrobe. Material: Polyester Size: 39*27cm / 15.37"*10.64" Color: As shown in the picture Package includes: 1pc heat reactive ski mask