Sweat-absorbing design: The helmet cap are deigned with sweat-absorbing function, so that they can help to wick away your sweat and protect you from sun or cold air, also they are breathable enough to make your head stay in comfortable and easy condition, can accompany with you for a long time. Elasticity design: The helmet hat is designed with elasticity, suitable for most people, can be stretched to the suitable size and fits your head better, very convenient for you to wear, no need to take much time for choosing the sizes. Suitable occasions: The cycling beanie can be applied for outdoor or indoor activities, such as go hiking, cycling, biking, riding or other sports, necessary items suitable for sport lovers.