Knitted woolen hats have these advantages that attracted more people:
Warmth: Wool is an excellent insulator and can trap heat close to the body, helping to keep the head warm in cold temperatures. The tight knit of woolen hats also helps to retain heat and prevent cold air from reaching the scalp.

Comfort: Wool is soft and comfortable to wear, making it a popular choice for winter hats. Unlike synthetic materials, wool is breathable and wicks away moisture, helping to keep the head dry and comfortable.

Durability: Wool is a durable material that can withstand frequent wear and tear. Knitted woolen hats are often well-made and can last for several seasons if cared for properly.

Style: Knitted woolen hats come in a variety of styles, colors, and patterns, allowing people to express their personal style while staying warm in winter. They can add a fashionable touch to winter outfits and can be coordinated with other cold-weather accessories.

Natural Material: Many people prefer natural materials like wool over synthetic materials because they are biodegradable and more environmentally friendly. Wool is also renewable and sustainable, making it a popular choice for eco-conscious consumers.