All measurements in centimetres unless stated. Surplus garments vary — measure a similar item you own and compare.
Men's Tops & Jackets (chest)
| Size |
UK |
Chest (cm) |
Chest (in) |
| S |
36 |
91 |
36 |
| M |
38–40 |
97–102 |
38–40 |
| L |
42–44 |
107–112 |
42–44 |
| XL |
46–48 |
117–122 |
46–48 |
| XXL |
50–52 |
127–132 |
50–52 |
Men's Trousers (waist)
| Size |
Waist (cm) |
Waist (in) |
| S |
76–81 |
30–32 |
| M |
84–89 |
33–35 |
| L |
91–97 |
36–38 |
| XL |
99–104 |
39–41 |
Boots (UK / EU / US)
| UK |
EU |
US (Men) |
| 6 |
40 |
7 |
| 7 |
41 |
8 |
| 8 |
42 |
9 |
| 9 |
43 |
10 |
| 10 |
44 |
11 |
| 11 |
45 |
12 |
| 12 |
46 |
13 |
How to measure
-
Chest: around the fullest part, under the arms, tape level.
-
Waist: around the natural waist, just above the hips.
-
Foot: stand on paper, mark heel and longest toe, measure between marks.
NATO Military Clothing Size Guide
British military and NATO clothing is often labelled using measurements in centimetres rather than standard Small, Medium and Large sizing.
For jackets, shirts, smocks and similar garments, a size such as 180/104 generally indicates a recommended height of approximately 180 cm and a chest measurement of approximately 104 cm.
| NATO Size |
Approx. UK Size |
Height Fit |
| 160/88 |
Small |
Extra Short |
| 160/96 |
Medium |
Extra Short |
| 160/104 |
Large |
Extra Short |
| 170/88 |
Small |
Short |
| 170/96 |
Medium |
Short |
| 170/104 |
Large |
Short |
| 170/112 |
XL |
Short |
| 170/120 |
XXL |
Short |
| 180/88 |
Small |
Regular |
| 180/96 |
Medium |
Regular |
| 180/104 |
Large |
Regular |
| 180/112 |
XL |
Regular |
| 180/120 |
XXL |
Regular |
| 190/88 |
Small |
Long |
| 190/96 |
Medium |
Long |
| 190/104 |
Large |
Long |
| 190/112 |
XL |
Long |
| 190/120 |
XXL |
Long |
| 200/104 |
Large |
Extra Long |
| 200/112 |
XL |
Extra Long |
| 200/120 |
XXL |
Extra Long |
| 200/124 |
XXXL |
Extra Long |
Please note: This guide is approximate. Military clothing can vary depending on the manufacturer, garment type and intended fit. Where measurements are provided on an individual product listing, we recommend using these to help choose the best size.
NATO Military Trouser Size Guide
British military trousers are commonly marked with three measurements, for example 75/80/96.
The measurements are in centimetres and generally represent:
75 = inside leg
80 = waist
96 = seat
Some garments may instead carry a two-part NATO size, particularly different styles or generations of military clothing.
Inside Leg Guide
| NATO Leg Measurement |
Approx. Inside Leg |
Fit |
| 70 cm |
27.5" |
Extra Short |
| 75 cm |
29.5" |
Short |
| 80 cm |
31.5" |
Regular |
| 85 cm |
33.5" |
Long |
| 90 cm |
35.5" |
Extra Long |
Waist Conversion Guide
| NATO Waist |
Approx. Waist |
| 68 cm |
27" |
| 72 cm |
28" |
| 76 cm |
30" |
| 80 cm |
31.5" |
| 84 cm |
33" |
| 88 cm |
34.5" |
| 92 cm |
36" |
| 96 cm |
38" |
| 100 cm |
39.5" |
| 104 cm |
41" |
| 108 cm |
42.5" |
| 112 cm |
44" |
Please note: Always check the individual product description where possible, as actual garment measurements and military sizing can vary.
Hat & Headwear Size Guide
Military, police and uniform headwear may be marked in centimetres, UK hat sizes or Small, Medium and Large.
To find your size, use a soft tape measure around the widest part of your head, approximately 1 cm above your eyebrows and just above your ears. Keep the tape level and comfortably snug without pulling it tight.
| Head Circumference |
Approx. UK Hat Size |
| 52 cm |
6⅜ |
| 53 cm |
6½ |
| 54 cm |
6⅝ |
| 55 cm |
6¾ |
| 56 cm |
6⅞ |
| 57 cm |
7 |
| 58 cm |
7⅛ |
| 59 cm |
7¼ |
| 60 cm |
7⅜ |
| 61 cm |
7½ |
| 62 cm |
7⅝ |
| 63 cm |
7¾ |
| 64 cm |
7⅞ |
Approximate Hat Sizes
| Size |
Head Circumference |
| XS |
52–53 cm |
| Small |
54–55 cm |
| Medium |
56–57 cm |
| Large |
58–59 cm |
| XL |
60–61 cm |
| XXL |
62–63 cm |
Please note: Hat and helmet sizing varies between manufacturers and styles. If we have measured an individual item, please use the measurements given in the product listing as your main guide.
Sizes are guidance only. Surplus stock may differ between manufacturers and eras.
