Features: 1. Heat Storage Protection Headgear: Soft touch windproof warmth does not affect the line of vision lined with fleece for warmth stitching stretch fabric fit without pressure warm riding out without fear of cold. 2. Breathable: It will breathe hollow mesh hollow mesh at the mouth and nose high breathability long wear not stuffy so you have a good journey. 3. High-quality Materials: Elastic fabric skin-friendly and comfortable to the touch high elasticity suitable for a variety of head circumference do not worry about tightness and pressure it will bring you a good experience. 4. Humanized Design: Glasses hole design with reflective glasses holes on both sides more convenient to wear glasses. 5. Applicable Occasions: Equipped with a shoulder strap it can be used as a fashionable daily travel shoulder bag and one bag can be used as both a bicycle bag and a daily shoulder bag. Specifications: Material: Polyester Size: 15*11*2cm Weight: 78g Battery: 200mAh includes: 1 *Balaclava(include battery) "