Chicingyou 2 Pack Cooling Skull Cap Helmet Liner, Breathable Mesh Lightweight Quick-Dry Helmet with Glasses Hole for Cycling (Black,Grey)

["Cooling Mesh Fabric with Glasses Holes: wearing Tip：Side openings designed to hold eyewear allow you to gently find these cutouts with your fingers before inserting glasses legs for smoother alignment; The top mesh fabric provides cooling, creating a ventilated feel on the head; Glasses holes on the sides accommodate eyewear, allowing the liner to fit comfortably under helmets without shifting or pressing on frames","Size Specifications for Comfortable Fit: this skull cap features a 52cm head circumference, 14cm height, and 25cm width, with a weight of about 20g; The dimensions are designed to fit most head sizes; The lightweight build reduces pressure, supporting comfortable wear under helmets for extended periods","Ultimate Cooling Breathable: comfortcrafted with 92% Nylon and 8% Spandex mesh, our cooling skull cap delivers instant cooling and max airflow; Moisture-wicking fabric pulls sweat from your scalp, keeping you dry during intense running, cycling, or outdoor work; Weighing 0.7oz (20g), it's ultra-lightweight (barely noticeable under helmets) with soft, stretchy material for different scalps","Sweat-wicking Design for Active Use: this skull cap quickly absorbs sweat and dries fast, keeping the head fresh and dry during outdoor exercise or workouts; It sits between the helmet and hair to absorb moisture, maintaining helmet cleanliness","Versatile Activities for Men and Women: the skull cap works for indoor and outdoor activities, including cycling, motorcycle riding, hiking, jogging, and gym sessions; It has an elastic fit that suits different head sizes for various sports"]