[Premium Bike Helmet]:This outdoor mountain bike helmet is designed to provide great and comfort for all your biking adventures [Velvet Lining]:The helmet is made of EPS,PVC,and Nylon,and features a velvet lining,offering an extra layer of comfort and warmth during your rides [Impact Resistance]:Crafted with quality EPS materials,this helmet boasts high impact resistance to ensure your safety while you experience through challenging terrains [Removable Brim Breathable Design]:The removable brim allows for customization based on weather conditions or personal preference,while the lightweight and breathable design ensures optimal ventilation for a comfortable ride [Adjustable Size]:Suitable for both men and women,this helmet comes with an adjustable size feature to ensure a great fit for every rider