Features: OOTDTY brand new and high quality Proper Practical Size: Suits most people's head circumference because it owns a good elasticity to wrap your head properly.They can be also applied for a lining in helmets for you and suifor spring, summer, autumn and winter. Breathable and Skin-friendly Material: These cooling skull cap are made of polyester fabric, which is soft and comfortable; Breathable UV protection, sweat-absorbent to prevent sweat from entering your eyes. Quick dry and keep your helment clean. Versatile Usage: The cooling skull caps are ideal for indoor and outdoor using, can be worn by men and women. When you wear it under helmet & hard hat, it can relieve moments of heat, itching and sweating. Lightweight & Easy to Store: Our skull helmet liners are featured with portable size which will not take up much of your space, the thin beanie is good enough to keep the head warm but not too hot. With Various Colors: The skull caps for men and women are in simple but claic colors. The fitted cutting design of the head wraps makes you look cool even while exercising. Specifications: Material: Polyester Color Options: 6 Colors are Available as Shown in the Picture. Package Weight: approx.35g Size: approx.24x14cm/9.44x5.51in Package Includes: 1Pc x Cycling Cap Note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!