Polypropylene fibers are very similar to wool, with good elasticity, fluffy curls, and softness, and 15% higher warmth than wool, known as synthetic wool. It has the advantages of being soft, fluffy, easy to dye, brightly colored, light-resistant, anti-bacterial, and not afraid of insects. Winter wear so a hat, not only can help the head warm but also can fix hair, avoid hair is wind dirty, on the hair has a very good protective effect. Winter day by day cold, we must be ready for cold gear, good collocation not only can let you keep warm double, but also can let you charm plus, this wool cap is a very good choice, not only keep warm but will also better reflect your personality. Made from acrylic material, measuring 11.02*8.27 inches, this custom knitted ball cap with ear protection. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Portable, durable, practical for daily use.