Men's plain combed cotton socks

Plain combed cotton socks, grey — Jerem Paris

How to measure yourself

Measure yourself in your underwear, with a soft tape, standing and relaxed. Get someone to help with your back: a measurement taken alone is almost always too tight.

NeckAround the base of the neck, where the collar sits. Slide one finger between the tape and your skin.
ChestAt the fullest point, arms by your sides, tape level across your back.
WaistAt the narrowest point, above the navel, without pulling. Breathe normally.
HipsAt the fullest point of the hips, feet together.
Inside legFrom the crotch to the floor, barefoot, or on a pair of trousers that fits you well.
Foot lengthStanding, heel against a wall, on a sheet of paper. Use your longer foot.

Between two sizes, take the larger for a jacket or coat, the smaller for knitwear.

Tops

Start with the chest measurement: that is the one that decides.

Shirts
Polo shirts
Jumpers
Cardigans
Parkas
Coats
Jackets
Padded jackets

Size	Chest	Waist	Neck	French size
S	90 – 94 cm	78 – 82 cm	37 – 38	36 – 38
M	94 – 100 cm	82 – 88 cm	39 – 40	40
L	100 – 106 cm	88 – 94 cm	41 – 42	42
XL	106 – 112 cm	94 – 100 cm	43 – 44	44 – 46
XXL	112 – 118 cm	100 – 108 cm	45 – 46	48 – 50
XXXL	118 – 124 cm	108 – 116 cm	47 – 48	52 – 54

The neck column applies to shirts only. For a jumper worn over a shirt, go up one size.

By cut

Slim fitClose to the body, tapered at the waist. Between two sizes, take the larger.
Regular fitFalls straight without marking the waist. Follow the table as it is.
Comfort fitExtra room through the chest. You can go down one size.

Shirts — collar size

These shirts are sized by the neck, in centimetres. The number on the label is your collar size: 41 means 41 cm.

Non-iron shirts
Easy-iron
Cutaway collar
COOLMAX®

Collar size	Equivalent	Chest	Sleeve length
37	S	88 – 92 cm	62 cm
38	S	92 – 96 cm	63 cm
39	M	96 – 100 cm	64 cm
40	M	100 – 104 cm	64 cm
41	L	104 – 108 cm	65 cm
42	L	108 – 112 cm	65 cm
43	XL	112 – 116 cm	66 cm
44	XL	116 – 120 cm	66 cm
45	XXL	120 – 124 cm	67 cm
46	XXL	124 – 128 cm	67 cm

The finger test. With the collar closed, you should be able to slide one finger between the collar and your neck, no more. Two fingers fit: go down one size.

Jackets and coats

A jacket size is half your chest measurement: a 100 cm chest is a size 50.

Suit jackets
Smart jackets
Blazers
Coats
Jackets

Size	Chest	Waist	Shoulders	Letter	Matching trousers
46	90 – 94 cm	78 – 82 cm	43 cm	S	38
48	94 – 98 cm	82 – 86 cm	44 cm	S / M	40
50	98 – 102 cm	86 – 90 cm	45 cm	M	42
52	102 – 106 cm	90 – 94 cm	46 cm	L	44
54	106 – 110 cm	94 – 98 cm	47 cm	L / XL	46
56	110 – 114 cm	98 – 104 cm	48 cm	XL	48
58	114 – 118 cm	104 – 110 cm	49 cm	XXL	50
60	118 – 122 cm	110 – 116 cm	50 cm	XXL	52
62	122 – 126 cm	116 – 122 cm	51 cm	XXXL	54

The shoulder seam decides. It must sit exactly at the corner of your shoulder. A jacket can be taken in at the waist and sleeves, never at the shoulders.

Trousers

The size is read from the waist, measured at its narrowest, never at the hips.

Suit trousers
Smart trousers
Pleated
Chinos

Size	Waist	Hips	Jean equivalent	Letter
38	74 – 78 cm	90 – 94 cm	3032	S
40	78 – 82 cm	94 – 98 cm	3232	S / M
42	82 – 86 cm	98 – 102 cm	3332	M
44	86 – 90 cm	102 – 106 cm	3432	L
46	90 – 94 cm	106 – 110 cm	3632	L
48	94 – 98 cm	110 – 114 cm	3832	XL
50	98 – 102 cm	114 – 118 cm	4032	XL
52	102 – 106 cm	118 – 122 cm	—	XXL
54	106 – 110 cm	122 – 126 cm	—	XXL
56	110 – 114 cm	126 – 130 cm	—	XXXL

Do not rely on the size of your last pair of trousers. It varies by two sizes from one brand to another. Measure a pair that fits you instead, laid flat with the waistband closed: multiply the width by two.

Jeans

On these jeans the size is shown as four digits. Find yours in the first column and read across.

Size shown	Waist	Inside leg	French size
3032	76 cm	81 cm	38
3034	76 cm	86 cm	38
3232	81 cm	81 cm	40
3234	81 cm	86 cm	40
3332	84 cm	81 cm	42
3334	84 cm	86 cm	42
3432	86 cm	81 cm	44
3434	86 cm	86 cm	44
3632	91 cm	81 cm	46
3634	91 cm	86 cm	46
3832	97 cm	81 cm	48
3834	97 cm	86 cm	48
4032	102 cm	81 cm	50
4034	102 cm	86 cm	50

The inside leg is measured from the crotch to the hem. 81 cm suits up to 1.80 m, 86 cm above that.

If in doubt about the length, take 81 cm. Jeans can be shortened by a tailor; they cannot be lengthened.

Belts

A belt is chosen by trouser size, not by your body measurement: allow about 5 cm more.

Belt	Waist	Trouser size	Letter
80 cm	73 – 77 cm	38	S
85 cm	77 – 81 cm	40	S
90 cm	81 – 85 cm	42	M
95 cm	85 – 89 cm	44	M
100 cm	89 – 93 cm	46	L
105 cm	93 – 97 cm	48	L
110 cm	97 – 101 cm	50	XL
115 cm	101 – 105 cm	52	XL
120 cm	105 – 109 cm	54	XXL
125 cm	109 – 113 cm	56	XXL

The size given is the total length, buckle included. The middle hole should fall on your waist measurement.

To check against a belt you already own: measure from the base of the buckle to the hole you use. That number is your size.

Shoes

Measure your foot at the end of the day, standing, heel against a wall. Use your longer foot: they are never identical.

Oxfords
Derbies
Loafers
Chelsea boots
Trainers

FR size	Foot length	US	UK
39	25,0 cm	6	5,5
40	25,7 cm	7	6,5
41	26,4 cm	8	7,5
42	27,0 cm	8,5	8
43	27,7 cm	9,5	9
44	28,4 cm	10	9,5
45	29,0 cm	11	10,5
46	29,7 cm	11,5	11

By sole

Hand-patinated leatherThe leather gives by half a size. Between two sizes, take the larger.
Rubber soleThe fit is more generous. Stay with your usual size.
Chelsea bootsThe side elastic compensates. Stay with your usual size.