It needs to be measured with a soft ruler.

Children take a standing position, sitting position or supine position, and fix the soft ruler at 0 o'clock on the upper edge of the eyebrow arch on one side of the head. The length of the head circumference is that the soft ruler is around the highest point of the occipital tubercle and close to the scalp from the upper edge of the eyebrow arch on the other side to 0 o'clock (if there is too much hair, push it away).

Adults take a sitting or standing position, and form a circle horizontally from occipital tuberosity to forehead (the largest diameter of head circumference) with a tape measure.

The average head circumference of adult males is about 57CM or 58CM, and that of adult females is about 56CM or 57CM. People with larger head circumference can relax about 1-2CM on this basis. Adults with small head circumference are about 55CM to 53CM.

The specifications of China hats start from No.46, ranging from No.46 to No.56 for children, No.55 to No.60 for adults and No.60 for oversize hats.

Generally, the cap size of adult men is 55-56, that of children is 50-55, and that of baby hat is 42-46. There are only 1-3 kinds of adult soft hats, sun hats and sports hats. Knitted hats can be stretched regardless of size, and some are calculated by weight-gram.

Extended data

Four suggestions for choosing hats

Tip 1: Choose the right color.

1, yellow face is not suitable for this year's popular yellow-green tone, you can choose gray powder and other colors. People with black or white skin color have more color space.

2. People with yellowish skin should not wear yellow-green hats, but if hats of dark brown, purple lotus, crab green and beige are properly matched with clothes, better results can be achieved.

3, people with ruddy skin color, choose a sun hat with a wide range of colors, which can be matched with many colors. People with grayish skin color are suitable to use intermediate colors with low purity, such as jade white, stone green, light blue, brown and lavender. And don't choose bright colors.

Tip 2: hat and face match.

1, the relationship between oval face and hat: oval face is suitable for wearing any kind of hat, and the depth of the hat is moderate, and the best hat is one third of the face.

2. The relationship between a round face and a hat: the best hats to buy are square, pointed and polygonal, and the most suitable hats are berets, engineers' hats, knights' hats and caps.

3. The relationship between the square face and the hat: the proportion of the hat to be purchased is high, and it is best to show three-quarters of the face. The most suitable hats are octagonal hats, curling hats, cowboy hats and high-top hats.

4. The relationship between the long face and the hat: The hat with the long face should not be too high, otherwise it will appear longer, and two thirds of the face should be exposed. The most suitable hat types are fisherman's hat and big brim hat.

Tip 3: the collocation of hat and clothing

1. When you wear sportswear, you usually wear a baseball cap or an empty hat.

2. When choosing a suit, windbreaker or tweed coat, it is usually paired with a hat or wool hat.

When wearing printed clothes, you'd better buy a hat with a certain dark color.

4. Choose a hat with a strong color contrast with the clothes, giving others a lively and vigorous feeling.

It is most appropriate to wear a blue hat when wearing red clothes, and vice versa.

6. Choosing a hat with the same color as the clothing or similar to the overall color of the clothing can give others a fresh and elegant feeling.

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