We know that finding the right shoe size can be tricky!

We’d recommend looking at the size guide which shows the approximate length of each size’s insole in centimetres.

If you already have a hiking boot, running shoe, or training shoe that fits you well, you could measure the length of the shoe’s insole and match this with the size guide.

Alternatively, you can measure the length of your foot and add between 1 and 2cm to find the correct insole length. It is hard to be exact here, as sizing is so personal – but in hiking boots, running shoes or training shoes, we’d recommend having at least 1cm of extra space beyond the end of the longest toe to ensure comfort.

Shoes
UK SizeEU SizeUS Size MensUS Size WomensCM Insole Length
1 33 2 3.5 20
2 34.5 3 4.5 21
3 35.5 4 5.5 22
3.5 36 4.5 6 22.5
4 37 5 6.5 23
4.5 37.5 5.5 7 23.5
5 38 6 7.5 24
5.5 38.5 6.5 8 24.5
6 39.5 7 8.5 25
6.5 40 7.5 9 25.5
7 40.5 8 9.5 26
7.5 41.5 8.5 10 26.5
8 42 9 10.5 27
8.5 42.5 9.5 11 27.5
9 43 10 11.5 28
9.5 44 10.5 - 28.5
10 44.5 11 - 29
10.5 45 11.5 - 29.5
11 45.5 12 - 30
11.5 46.5 12.5 - 30.5
12 47 13 - 31
13 48 14 - 32
14 50 15 - 33

Laces
SMALLMEDIUMLARGEXLARGE
UK 3-6 UK 7-9 UK 10-12 UK 13+
US 4-7 US 8-10 US 11-13 US 14+

Shoe Fit Scale

Fits Narrow 1 2 3 4 5 Fits Wide

We have graded the fit of all our shoes from 1 to 5 to make it easy for you to find the perfect fitting shoe. All our shoes are designed with Met-Cradle technology to lock down the mid-foot for a stable hold. Where they differ is in the toe box. Grade 1 represents our closest, most precise fit. At the other end of the scale, Grade 5 has the widest fitting toe box.

We have meticulously studied the foot and its function during the gait cycle and also the interaction between the foot and the terrain. We have used this knowledge to develop our fitting scale. For technical footwear a good fit is essential to enhance your performance.

The lower the number on our scale, the narrower the fit, which ensures minimal internal movement of the foot when running fast on technical terrain. Shoes with the higher numbers on our scale will suit athletes with a wider foot and those wanting that extra comfort in the toe box. This wider toe box allows the toes to splay for increased stability when lifting heavy weights. It’s also perfect for longer runs and races when toes begin to swell.

As a rough guide, Grade 1 represents an industry B fit, while Grade 5 equates to a 2E fit in the forefoot.

 

 

Men's / Unisex Gym Clothing
 XSSMLXLXXL
Chest 33 - 35"
83 - 90cm
35 - 38"
90 - 97cm
38 - 41"
97 - 104cm
41 - 44"
104 - 111cm
44 - 47"
111 - 118cm
47 - 50"
118 - 125cm
Waist 27 - 30"
69 - 75cm
30 - 32"
75 - 81cm
32 - 34"
81 - 87cm
34 - 37"
87 - 93cm
37 - 41"
93 - 103cm
41 - 43"
103 - 109cm

 

Men's / Unisex Run Clothing
 XSXSSMLXLXXL
Chest 34 - 36"
86 - 82cm
36- 38"
91 - 86cm
38 - 40"
97 - 90cm
40 - 42"
102 - 94cm
42 - 44"
107 - 98cm
44 - 46"
112 - 117cm
Waist 29 - 31"
74 - 79cm
31 - 33"
79 - 84cm
33 - 25"
84 - 89cm
35 - 37"
89 - 94cm
37 - 39"
94 - 99cm
39 - 41"
99 - 104cm

 

Women's Gym Clothing
UK SizeEU SizeUS SizeChestWaistHips
8 34 4 31 - 33"
79 - 84cm
25 - 27"
64 - 69cm
34.5 - 36.5"
88 - 93cm
10 36 6 33 - 35"
84 - 89cm
27 - 29"
69 - 74cm
36.5 - 38.5"
93 - 98cm
12 38 8 35 - 37"
89 - 94cm
29 - 31"
74 - 79cm
38.5 - 40.5"
98 - 103cm
14 40 10 37 - 39"
94 - 99cm
31 - 33"
79 - 84cm
40.5 - 42.5"
103 - 108cm
16 42 12 39 - 41"
99 - 104cm
33 - 35"
84 - 89cm
42.5 - 44.5"
108 - 113cm

 

Women's Run Clothing
UK SizeEU SizeUS SizeChestWaistHips
6 32 2 30.5 - 32.5"
78 - 82cm 
23.5 - 25"
60 - 64cm 
34 - 35.5"
86 - 90cm 
8 34 4 32.5 - 34"
82 - 86cm
25 - 27"
64 - 68cm
35.5 - 37"
90 - 94cm
10 36 6 34 - 35.5"
86 - 90cm
27 - 28.5"
68 - 72cm
37 - 38.5"
94 - 98cm
12 38 8 35.5 - 37"
90 - 94cm
28.5 - 30"
72 - 76cm
38.5 - 40"
98 - 102cm
14 40 10 37 - 38.5"
94 - 98cm
30 - 31.5"
76 - 80cm
40 - 41.5"
102 - 106cm
16 42 12 38.5 - 40"
98 - 102cm
31.5 - 33"
80 - 84cm
41.5 - 43.5"
106 - 110cm

 

Handwear
 SmallMediumLargeX-Large
Glove 6 - 7"
15 - 18cm
7 - 8"
18 - 20cm 
8 - 9"
20 - 23cm 
9 - 10"
23 - 25cm 
Mitt 6 - 7"
15 - 18cm
7 - 8"
18 - 20cm
8 - 9"
20 - 23cm
-

To determine your size, measure the circumference at the widest part of your largest hand just below the knuckles using a soft tape measure. The size chart is only a guide.

 

Socks
SmallMediumLarge
UK 3-6 UK 7-9 UK 10-12
US 4-7 US 8-10 US 11-13

 

Extreme Thermo Socks
Sock sizeUK shoe sizeUS MEU
XS 3-5 4-6 36-38
S 5-7 6-8 38-40
M 7-9 8-10 40-43
L 9-11 10-12 43-46
XL 11-13 12-14 46-48

 

Packs and Bags
S/ML/XL
29.5-41.5" chest
75 - 105cm chest
35.5-47" chest
90 - 120cm chest

Shoe Fit Scale

Fits Narrow 1 2 3 4 5 Fits Wide

We have graded the fit of all our shoes from 1 to 5 to make it easy for you to find the perfect fitting shoe. All our shoes are designed with Met-Cradle technology to lock down the mid-foot for a stable hold. Where they differ is in the toe box. Grade 1 represents our closest, most precise fit. At the other end of the scale, Grade 5 has the widest fitting toe box.

We have meticulously studied the foot and its function during the gait cycle and also the interaction between the foot and the terrain. We have used this knowledge to develop our fitting scale. For technical footwear a good fit is essential to enhance your performance.

The lower the number on our scale, the narrower the fit, which ensures minimal internal movement of the foot when running fast on technical terrain. Shoes with the higher numbers on our scale will suit athletes with a wider foot and those wanting that extra comfort in the toe box. This wider toe box allows the toes to splay for increased stability when lifting heavy weights. It’s also perfect for longer runs and races when toes begin to swell.

As a rough guide, Grade 1 represents an industry B fit, while Grade 5 equates to a 2E fit in the forefoot.