I believe the size was M, but I've cut off the tag and can't confirm. THE NORTH FACE POLARTEC®︎ Midweight Balaclava The North Face POLARTEC Midweight Balaclava Skiing, snowboarding, mountaineering, outdoor activities, balaclava, neck gaiter Retail Price: ¥8,800 Color: Black/Gray Size: M This is a new, unused POLARTEC®︎ Midweight Balaclava. It's difficult to find this item now because it no longer uses POLARTEC®︎. Features: This balaclava uses POLARTEC Power Grid, a high-performance fleece material, throughout. Its high breathability efficiently expels exhaled air and sweat vapor, reducing stuffiness. It balances warmth and breathability, making it suitable for a wide range of field activities. The design pattern, derived from numerous field tests, and the material's stretchiness provide a smooth wearing experience. Gender: Unisex Features: Breathable, Windproof, Warm/Cold Protection, POLARTEC