Home CoolTech™ Athletics

CoolTech™ Athletics

Regular price $214.99 Sale price $64.50
70% OFF
Size: 6

Size

size

Size Guide — Find Your Fit

Size Guide

Find Your Fit

All footwear is sized by actual foot length. Measure both feet while standing and fit to the larger one.

Gender
Category
Units

Men's Footwear

Foot length · in
US UK EU JP Foot
3.5 2.5 34.5 21.5 8.74
4 3 35 22 8.86
4.5 3.5 36 22.5 9.06
5 4 37 23 9.25
5.5 4.5 37.5 23.5 9.45
6 5 38 24 9.61
6.5 5.5 38.5 24.5 9.76
7 6 39 25 10.00
7.5 6.5 40 25.5 10.20
8 7 41 26 10.43
8.5 7.5 41.5 26.5 10.67
9 8 42 27 10.87
9.5 8.5 42.5 27.5 11.06
10 9 43 28 11.26
10.5 9.5 43.5 28.5 11.46
11 10 44 29 11.65
11.5 10.5 45 29.5 11.89
12 11 46 30 12.05
13 12 47 31 12.20
14 13 48 32 12.60
15 14 49 33 12.99

Men's Footwear

Foot length · cm
US UK EU JP Foot
3.5 2.5 34.5 21.5 22.2
4 3 35 22 22.5
4.5 3.5 36 22.5 23.0
5 4 37 23 23.5
5.5 4.5 37.5 23.5 24.0
6 5 38 24 24.4
6.5 5.5 38.5 24.5 24.8
7 6 39 25 25.4
7.5 6.5 40 25.5 25.9
8 7 41 26 26.5
8.5 7.5 41.5 26.5 27.1
9 8 42 27 27.6
9.5 8.5 42.5 27.5 28.1
10 9 43 28 28.6
10.5 9.5 43.5 28.5 29.1
11 10 44 29 29.6
11.5 10.5 45 29.5 30.2
12 11 46 30 30.6
13 12 47 31 31.0
14 13 48 32 32.0
15 14 49 33 33.0

Women's Footwear

Foot length · in
US UK EU JP Foot
5 2.5 34.5 21.5 8.74
5.5 3 35 22 8.86
6 3.5 36 22.5 9.06
6.5 4 37 23 9.25
7 4.5 37.5 23.5 9.45
7.5 5 38 24 9.61
8 5.5 38.5 24.5 9.76
8.5 6 39 25 10.00
9 6.5 40 25.5 10.20
9.5 7 41 26 10.43
10 7.5 41.5 26.5 10.67
10.5 8 42 27 10.87
11 8.5 42.5 27.5 11.06
12 9 43 28 11.26

Women's Footwear

Foot length · cm
US UK EU JP Foot
5 2.5 34.5 21.5 22.2
5.5 3 35 22 22.5
6 3.5 36 22.5 23.0
6.5 4 37 23 23.5
7 4.5 37.5 23.5 24.0
7.5 5 38 24 24.4
8 5.5 38.5 24.5 24.8
8.5 6 39 25 25.4
9 6.5 40 25.5 25.9
9.5 7 41 26 26.5
10 7.5 41.5 26.5 27.1
10.5 8 42 27 27.6
11 8.5 42.5 27.5 28.1
12 9 43 28 28.6

Width Guide — Men's

Ball of foot · in
US Size B Narrow D Regular EE Wide H X-Wide
6 3.40 3.70 4.00 4.30
6.5 3.50 3.80 4.10 4.40
7 3.60 3.90 4.20 4.50
7.5 3.70 4.00 4.30 4.60
8 3.80 4.10 4.40 4.70
8.5 3.90 4.20 4.50 4.80
9 4.00 4.30 4.60 4.90
9.5 4.10 4.40 4.70 5.00
10 4.20 4.50 4.80 5.10
10.5 4.30 4.60 4.90 5.20
11 4.40 4.70 5.00 5.30
12 4.60 4.90 5.20 5.50
13 4.80 5.10 5.40 5.70

Measured straight across the ball of the foot while standing, full weight applied. Going up a length does not add width — always fit to width, not length. Width options vary by style and last.

Width Guide — Men's

Ball of foot · cm
US Size B Narrow D Regular EE Wide H X-Wide
6 8.6 9.4 10.2 10.9
6.5 8.9 9.7 10.4 11.2
7 9.1 9.9 10.7 11.4
7.5 9.4 10.2 10.9 11.7
8 9.7 10.4 11.2 11.9
8.5 9.9 10.7 11.4 12.2
9 10.2 10.9 11.7 12.4
9.5 10.4 11.2 11.9 12.7
10 10.7 11.4 12.2 13.0
10.5 10.9 11.7 12.4 13.2
11 11.2 11.9 12.7 13.5
12 11.7 12.4 13.2 14.0
13 12.2 13.0 13.7 14.5

Measured straight across the ball of the foot while standing, full weight applied. Going up a length does not add width — always fit to width, not length. Width options vary by style and last.

How to Measure

01

Foot Length

Stand on paper, full weight down. Trace the foot and measure heel to longest toe.

02

Foot Width

Measure across the ball of the foot at its widest point — standing, not sitting.

03

Both Feet

Feet are rarely identical. Measure both and fit to the larger one.

04

Break-In

New leather should feel snug, with room to freely move your toes.

Conversions are approximate. Fit may vary by last, leather and sock weight.

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CoolTech™ Athletics

CoolTech™ Athletics

Stay fast, cool and comfortable on your feet with these lightweight, light-duty shoes featuring CrossBreeze technology for an instant cooling effect. The Nano composite toecap protects without weight and bulk, while the Vibram® SpeedSole delivers best-in-class slip and abrasion resistance underneath. Designed specifically to fit the unique shape of the female foot. Dial in to fast, effortless, precision fit with the BOA® Fit System, built for all-day performance in any environment.