Here, you can find all the information you need to determine your head circumference, and thereby your hat size. The measurements table will help you decide on the correct hat size for the circumference of your head, while our video will provide you with instructions on how to measure your hat size quickly and easily.
Measurement units (international)
Head circumference in cm
52
53
54
55
56
57
58
59
60
61
62
63
64
65
Worldwide
XS
XS
S
S
M
M
L
L
XL
XL
XXL
XXL
XXXL
XXXXL
Inches
20 1/4
20 3/4
21 1/8
21 1/2
21 7/8
22 1/4
22 5/8
23
23 1/2
23 7/8
24 1/4
24 5/8
25
25 1/2
UK size
6 3/8
6 1/2
6 5/8
6 3/4
6 7/8
7
7 1/8
7 1/4
7 3/8
7 1/2
7 5/8
7 3/4
7 7/8
8
US size
6 1/2
6 5/8
6 3/4
6 7/8
7
7 1/8
7 1/4
7 3/8
7 1/2
7 5/8
7 3/4
7 7/8
8
8 1/8
Kids� hat sizes. Measurement units (international)
Head circumference in cm
40
42
44
46
48
50
52
54
Age (approximately)
0-6 months
0-6 months
6-12 months
6-12 months
12-24 months
24-48 months
4-8 years
4-8 years
Inches
15 3/4
16 1/2
17 3/8
18 1/8
19
19 1/2
20 1/4
21 1/8
UK size
4 7/8
5 1/8
5 3/8
5 5/8
5 7/8
6 1/8
6 3/8
6 5/8
US size
5
5 1/4
5 1/2
5 3/4
6
6 1/4
6 1/2
6 3/4
How do I find the right hat size for me?
Credible Hats makes it very easy to find the right hat size for you. Measuring head circumference is the first step to finding the right hat size for both adults and children. Ideally, you should use a tape measure, but you can also use a simple piece of string:
First, stand in front of a mirror to make sure you measure around the head correctly.
It is essential to run the measuring tape around the middle of the back of the head and about one centimetre above the ears, around to the forehead.
Bring the tape measure or string together at the centre of your forehead. But be sure not to pull the tape too tight.
You can now read off your head circumference in your reflection in the mirror. If you don�t have a mirror to hand, simply read off the number where the measuring tape meets.
If using a piece of string or twine, you will need to mark the point where they meet. You can then hold the string up against a ruler to read off your head size.
Our tip: If you want to pull your hat down further over your head, you will need to add around one centimetre to your measured head size. You should also round up to the next full number. So, for example, if you measure a circumference of 59.5 cm, you will need to round up to 60 cm.
You can then use our size chart to figure out your size. There is a separate size chart for children aged up to eight years old. Both size charts show conversions from American and English sizes into international sizes.
If your new hat is still a little bit too big, you can use the cork inserts provided to make the hat circumference a bit smaller. To do this, place these inserts underneath the inner band on the sides of the hat.
How do I find the right shoe size for me?
Not sure about your shoe size? All shoes fit differently, and given shoe measurements vary depending on the country or region, it makes it confusing to find the right size, especially when shopping online.
To minimize the confusion and reduce the hassle of exchanging shoes, use our shoe size conversion guide. We've included shoe sizes from major countries so that you can find the perfect fit. Going through this process will help make sure you're getting the right size pair of shoes.
Please note: We only make standard width shoes right now. We're looking forward to growing to a point where we can make extra-wides too.
Women Shoe Size Conversion
US
EU
UK
5.5
35.5
3
6
36
3.5
6.5
37
4
7
37.5
4.5
7.5
38
5
8
38.5
5.5
8.5
39
6
9
40
6.5
Men's Shoe Size Conversion
US
EU
UK
6.5
38.5
5.5
7
39
6
7.5
40
6.5
8
40.5
7
8.5
41
7.5
9
42
8
9.5
42.5
8.5
10
43
9
10.5
44
9.5
11
44.5
10
11.5
45
10.5
12
45.5
11
13
47
12
14
48.5
13
NOTE:
Our size conversion chart is a guide to shoe size conversion based on standard shoe size measuring for US, UK, and EU. This chart does not provide a guarantee of shoe size fit; it is merely a guide. Note that our sizes can be slightly different to other running shoes as most shoe manufacturers use different lasts, leading to sizing variation.
How do I find the right Apparel size for me?
Not sure how to measure Apparel?
When shopping for clothing online, knowing your measurements will help you select the best size for your body without trying the product on. Because there are so many fits for different types of clothing, we've created a clothing size chart for reference. Please see directions below for how to measure each respective part of your body.
Chest/Bust- Keep the tape parallel to the floor and measure around the fullest part of your chest/bust. Use this measurement for tops and dresses.
Hips - Measure the fullest part of your hips standing with your feet together. Make sure to measure over your buttocks as well.
Inseam- Measure from the crotch to the inside seam of the leg while wearing your best fitting pair of pants. Wearing shoes is recommended to make sure the length is correct for you. Measure to the 1/2".
Neck - U.S. dress shirts are use inches for neck measurements. Wrap the tape around the Adam's apple. Make sure the tape is consistently level all the way around your neck.
Women's Regular Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
XS
0-2
32”-33”
24”-25”
34.5”-35.5”
S
4-6
34”-35”
26”-27”
36”-37”
M
8-10
36”-37”
28”-29”
38.5”-39.5”
L
12-14
38.5”-40”
30.5”-32
41”-42.5”
XL
16-18
41.5”-43
33.5”-35”
44”-45.5”
Women's Plus Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
0X
12W
40”
33”
42”
1X
14W-16W
42”-44”
35”-37”
44”-46”
2X
18W-20W
46”-48”
39”-41”
48”-50”
3X
22W-24W
50”-52”
43”-45”
52”-54”
4X
26W-28W
54”-56”
47”-49”
56”-58”
5X
30W-32W
58”-60”
51”-53”
60”-62”
Women's Petite Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
XS
2P
32”
23.5”
34”
S
4P-6P
33”-34”
24.6”-25.6”
35-36”
M
8P-10P
35”-36”
26.5”-27.5”
37”-38”
L
12P-14P
37.5”-39”
29”-30.5”
39.5”-41”
Women's Junior Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
XS
0-1
31”-32”
23”-24”
33”-34”
S
3-5
31”-32”
23”-24”
33”-34”
M
7
35”
27”
37”
L
9-11
36”-37.5”
28”-29.5”
38”-39.5”
XL
13
39”
31”
41”
Women's Casual Shirts
Manufacturer Size
USA
Chest/Bust
Waist
Hip
Sleeve Length
Shoulder Width
S
0-2
30.3”
25.2”
31.4”
35.4”
13.4”
M
4
32.2”
27.1”
33.4”
39.3”
13.8”
L
6
34.2”
29.1”
35.4”
39.7”
14.1”
XL
8
36.2”
30.7”
37.3”
40.1”
14.5”
Women's Pants Regular Sizing
Manufacturer Size
USA
Waist
Hip
XS
0-2
24”-25”
34.5”35.5”
S
4-6
26”-27”
36.5”-37.5”
M
8-10
28”-29”
38.5”-39.5”
L
12-14
30.5”-32”
41”-42.5”
XL
16-18
33.5”-35”
44”-45.5”
Women's Pants Plus Sizing
Manufacturer Size
USA
Waist
Hip
0X
12W
33”
42”
1X
14W-16W
35”-37”
44”-46”
2X
18W-20W
39”-41”
48”-50”
3X
22W-24W
43”-45”
52”-54”
4X
26W-28W
47”-49”
56”-58”
5X
30W-32W
51”-53”
60”-62”
Women's Pants Petite Sizing
Manufacturer Size
USA
Waist
Hip
XS
2P
23.5”
34”
S
4P-6P
24.6”-25.5”
35”-36”
M
8P-10P
26.5”-27.5
37”-38”
L
12P-14P
29”-30.5”
39.5”-41”
Mens' Clothing Size Charts
Find your size in shirts, coats and jackets! These size charts are intended for general reference only. Sizes can vary between brands.
Modern meets retro with the McLaren X Gulf hoodie. The bold chest logo print is complemented by subtle Gulf livery inspired detailing.
McLaren Racing graphic chest and rear print
Contrast hood and drawstring detailing
Gulf sleeve and McLaren speedmark hood logo prints
Material: 80% Cotton, 20% Polyester
Part of the official LicensedMcLaren x Gulfcollection, launched alongside the special MCL35M heritage Gulf livery, celebrating the iconic partnership between Gulf Oil International and McLaren.
Here, you can find all the information you need to determine your head circumference, and thereby your hat size. The measurements table will help you decide on the correct hat size for the circumference of your head, while our video will provide you with instructions on how to measure your hat size quickly and easily.
Measurement units (international)
Head circumference in cm
52
53
54
55
56
57
58
59
60
61
62
63
64
65
Worldwide
XS
XS
S
S
M
M
L
L
XL
XL
XXL
XXL
XXXL
XXXXL
Inches
20 1/4
20 3/4
21 1/8
21 1/2
21 7/8
22 1/4
22 5/8
23
23 1/2
23 7/8
24 1/4
24 5/8
25
25 1/2
UK size
6 3/8
6 1/2
6 5/8
6 3/4
6 7/8
7
7 1/8
7 1/4
7 3/8
7 1/2
7 5/8
7 3/4
7 7/8
8
US size
6 1/2
6 5/8
6 3/4
6 7/8
7
7 1/8
7 1/4
7 3/8
7 1/2
7 5/8
7 3/4
7 7/8
8
8 1/8
Kids� hat sizes. Measurement units (international)
Head circumference in cm
40
42
44
46
48
50
52
54
Age (approximately)
0-6 months
0-6 months
6-12 months
6-12 months
12-24 months
24-48 months
4-8 years
4-8 years
Inches
15 3/4
16 1/2
17 3/8
18 1/8
19
19 1/2
20 1/4
21 1/8
UK size
4 7/8
5 1/8
5 3/8
5 5/8
5 7/8
6 1/8
6 3/8
6 5/8
US size
5
5 1/4
5 1/2
5 3/4
6
6 1/4
6 1/2
6 3/4
How do I find the right hat size for me?
Credible Hats makes it very easy to find the right hat size for you. Measuring head circumference is the first step to finding the right hat size for both adults and children. Ideally, you should use a tape measure, but you can also use a simple piece of string:
First, stand in front of a mirror to make sure you measure around the head correctly.
It is essential to run the measuring tape around the middle of the back of the head and about one centimetre above the ears, around to the forehead.
Bring the tape measure or string together at the centre of your forehead. But be sure not to pull the tape too tight.
You can now read off your head circumference in your reflection in the mirror. If you don�t have a mirror to hand, simply read off the number where the measuring tape meets.
If using a piece of string or twine, you will need to mark the point where they meet. You can then hold the string up against a ruler to read off your head size.
Our tip: If you want to pull your hat down further over your head, you will need to add around one centimetre to your measured head size. You should also round up to the next full number. So, for example, if you measure a circumference of 59.5 cm, you will need to round up to 60 cm.
You can then use our size chart to figure out your size. There is a separate size chart for children aged up to eight years old. Both size charts show conversions from American and English sizes into international sizes.
If your new hat is still a little bit too big, you can use the cork inserts provided to make the hat circumference a bit smaller. To do this, place these inserts underneath the inner band on the sides of the hat.
How do I find the right shoe size for me?
Not sure about your shoe size? All shoes fit differently, and given shoe measurements vary depending on the country or region, it makes it confusing to find the right size, especially when shopping online.
To minimize the confusion and reduce the hassle of exchanging shoes, use our shoe size conversion guide. We've included shoe sizes from major countries so that you can find the perfect fit. Going through this process will help make sure you're getting the right size pair of shoes.
Please note: We only make standard width shoes right now. We're looking forward to growing to a point where we can make extra-wides too.
Women Shoe Size Conversion
US
EU
UK
5.5
35.5
3
6
36
3.5
6.5
37
4
7
37.5
4.5
7.5
38
5
8
38.5
5.5
8.5
39
6
9
40
6.5
Men's Shoe Size Conversion
US
EU
UK
6.5
38.5
5.5
7
39
6
7.5
40
6.5
8
40.5
7
8.5
41
7.5
9
42
8
9.5
42.5
8.5
10
43
9
10.5
44
9.5
11
44.5
10
11.5
45
10.5
12
45.5
11
13
47
12
14
48.5
13
NOTE:
Our size conversion chart is a guide to shoe size conversion based on standard shoe size measuring for US, UK, and EU. This chart does not provide a guarantee of shoe size fit; it is merely a guide. Note that our sizes can be slightly different to other running shoes as most shoe manufacturers use different lasts, leading to sizing variation.
How do I find the right Apparel size for me?
Not sure how to measure Apparel?
When shopping for clothing online, knowing your measurements will help you select the best size for your body without trying the product on. Because there are so many fits for different types of clothing, we've created a clothing size chart for reference. Please see directions below for how to measure each respective part of your body.
Chest/Bust- Keep the tape parallel to the floor and measure around the fullest part of your chest/bust. Use this measurement for tops and dresses.
Hips - Measure the fullest part of your hips standing with your feet together. Make sure to measure over your buttocks as well.
Inseam- Measure from the crotch to the inside seam of the leg while wearing your best fitting pair of pants. Wearing shoes is recommended to make sure the length is correct for you. Measure to the 1/2".
Neck - U.S. dress shirts are use inches for neck measurements. Wrap the tape around the Adam's apple. Make sure the tape is consistently level all the way around your neck.
Women's Regular Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
XS
0-2
32”-33”
24”-25”
34.5”-35.5”
S
4-6
34”-35”
26”-27”
36”-37”
M
8-10
36”-37”
28”-29”
38.5”-39.5”
L
12-14
38.5”-40”
30.5”-32
41”-42.5”
XL
16-18
41.5”-43
33.5”-35”
44”-45.5”
Women's Plus Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
0X
12W
40”
33”
42”
1X
14W-16W
42”-44”
35”-37”
44”-46”
2X
18W-20W
46”-48”
39”-41”
48”-50”
3X
22W-24W
50”-52”
43”-45”
52”-54”
4X
26W-28W
54”-56”
47”-49”
56”-58”
5X
30W-32W
58”-60”
51”-53”
60”-62”
Women's Petite Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
XS
2P
32”
23.5”
34”
S
4P-6P
33”-34”
24.6”-25.6”
35-36”
M
8P-10P
35”-36”
26.5”-27.5”
37”-38”
L
12P-14P
37.5”-39”
29”-30.5”
39.5”-41”
Women's Junior Sizing
General Size
US Clothing Size
Chest/Bust Measurement
Waist Measurement
Hips
XS
0-1
31”-32”
23”-24”
33”-34”
S
3-5
31”-32”
23”-24”
33”-34”
M
7
35”
27”
37”
L
9-11
36”-37.5”
28”-29.5”
38”-39.5”
XL
13
39”
31”
41”
Women's Casual Shirts
Manufacturer Size
USA
Chest/Bust
Waist
Hip
Sleeve Length
Shoulder Width
S
0-2
30.3”
25.2”
31.4”
35.4”
13.4”
M
4
32.2”
27.1”
33.4”
39.3”
13.8”
L
6
34.2”
29.1”
35.4”
39.7”
14.1”
XL
8
36.2”
30.7”
37.3”
40.1”
14.5”
Women's Pants Regular Sizing
Manufacturer Size
USA
Waist
Hip
XS
0-2
24”-25”
34.5”35.5”
S
4-6
26”-27”
36.5”-37.5”
M
8-10
28”-29”
38.5”-39.5”
L
12-14
30.5”-32”
41”-42.5”
XL
16-18
33.5”-35”
44”-45.5”
Women's Pants Plus Sizing
Manufacturer Size
USA
Waist
Hip
0X
12W
33”
42”
1X
14W-16W
35”-37”
44”-46”
2X
18W-20W
39”-41”
48”-50”
3X
22W-24W
43”-45”
52”-54”
4X
26W-28W
47”-49”
56”-58”
5X
30W-32W
51”-53”
60”-62”
Women's Pants Petite Sizing
Manufacturer Size
USA
Waist
Hip
XS
2P
23.5”
34”
S
4P-6P
24.6”-25.5”
35”-36”
M
8P-10P
26.5”-27.5
37”-38”
L
12P-14P
29”-30.5”
39.5”-41”
Mens' Clothing Size Charts
Find your size in shirts, coats and jackets! These size charts are intended for general reference only. Sizes can vary between brands.
Free shipping across all products on a minimum purchase of $500.
International delivery time - 7-10 business days
Cash on delivery might be available
Easy 14 days returns and exchanges
RETURNS
If you do not like the product you can return it within 15 days - no questions asked. This excludes bodysuits, swimwear and clearance sale items. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.
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Every product is sourced directly from official distributors of the brands we partner with, ensuring you receive only genuine, high-quality merchandise. Whether it's luxury headwear or F1 team gear, you can trust that you're getting the real deal every time.
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Crafted with care, our products combine premium materials and lasting comfort, becoming your trusted companion through every adventure.
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