The cycling caps are a versatile piece of gear no outdoor enthusiast should be without. Designed for maximum provide ultimate comfort, Soft,Breathable,Stretch ,Lightweight fabric won’t rub or irritate your skin.they block UV rays, stops windburn,function cooling and fast-drying provides cooling ,warmth, and wicks away sweat. Whatever the activity, whatever the weather,They¡¯re a must-have accessory for all-season performance. Breathable And Comfortable: Say goodbye to smell, sweat and itchy sensations. Our skull cap helmet liner both protects your skin and keeps sweat away from it. Comfortable feelings guaranteed! Fits All: walking, hiking, jogging, running, workout, cross training, cycling, gym, tennis, dancing, basketball or whatever you could think of! Are you a construction worker? Increase your head comfort while putting our moisture wicking helmet liner under your helmet! Practical Size: this hat has good elasticity, fit for most people; Note: please wash gently, no bleach, no iron, and avoid pointed items.