size:41*24cm Multiple wearing methods Can be worn as an open or closed balaclava, face mask, neck gaiter, scarf, bandana, helmet pad, headband or even a wristband Multifunctional sunscreen and UV protection, cooling in summer, windproof, dustproof and sandproof, sweat-absorbing, quick-drying, wrinkle-proof, machine washable The material is milk silk material, which is comfortable and breathable; it is smoother and more elastic. The elasticity is better, and it can completely cover every part of the head and neck, making it more close to the body and more comfortable. Extremely lightweight and easy to maintain. Very thin and strong elasticity, suitable for dust and insects. Wearing inside the helmet can better protect the head, ears and mouth. The length can completely wrap the neck, preventing mosquito bites and dust intrusion