Elasticity and high quality: This winter warm LED knitted hat is made of highly elastic and comfortable materials, suitable for most childrens, mens and womens head shapes. It adheres to the skin and gives long-lasting warmth and softness. The perfect Halloween/Christmas/birthday/New Year gift for your family, friends and anyone you love. Machine wash, hand wash Fastening: elastic Doudou Visibility and safety: Our LED light-up Doudou has 3 modes to ensure that you can see clearly in the dark. The headlight can illuminate the distance up to 30 feet. It points a directional light at what your eyes are looking at. Super powerful: Built-in 4 SMD LED headlights, providing 120 lumens and up to 4 hours of continuous use or 68 hours of realistic intermittent use. Provide enough light for you to find directions in the dark or complete tasks in low-light environments, while the knitted hat can keep you warm in cold weather. Multi-purpose: Beanie hat with LED light is very suitable for dog walking, jogging, biking, camping, hunting, fishing, hiking, handyman, barbecue, car repair and home renovation or any other activities that require hands-free lighting.