Sizing Guide

Watches:

Model: Wrist Size Information
Forerunner 35 Fits wrists with a circumference of 140-200 mm
Forerunner 45 Fits wrists with a circumference of 129-197 mm
Forerunner 45S Fits wrists with a circumference of 124-185 mm
Forerunner 235 Fits wrists with a circumference of 125-227 mm
Forerunner 245 Series Fits wrists with a circumference of 127-204 mm
Forerunner 645 Series Fits wrists with a circumference of 127-204 mm
Forerunner 735XT Fits wrists with a circumference of 125-235 mm
Forerunner 745 Fits wrists with a circumference of 126-216 mm
Forerunner 935 Fits wrists with a circumference of 127-204 mm
Forerunner 945 Fits wrists with a circumference of 130-220 mm
Venu Fits wrists with a circumference of 125-190 mm
Venu Sq Series Fits wrists with a circumference of 125-190 mm
vivoactive 3 Fits wrists with a circumference of 127-204 mm
vivoactive 3 Music Fits wrists with a circumference of 127-204 mm
vivoactive 4 Fits wrists with a circumference of 110-175 mm
vivoactive 4S Fits wrists with a circumference of 110-175 mm
vivosmart 4 Small/Medium Fits wrists with a circumference of 122-188 mm
vivosmart 4 Large Fits wrists with a circumference of 148-215 mm

  

Footwear:

Nike Men's 

US  6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21 21.5 22
UK 5.5 6 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21
CM 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 32 32.5 33 33.5 34 34.5 35 35.5 36 36.5 37 37.5 38 38.5 39 39.5 40
EU 38.5 39 40 40.5 41 42 42.5 43 44 44.5 45 45.5 46 47 47.5 48 48.5 49 49.5 50 50.5 51 51.5 52 52.5 53 53.5 54 54.5 55 55.5 56 56.5
Nike Women's
US  5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21 21.5 22 22.5 23 23.5
UK 3 3.5 4 4.5 5 5.5 6 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 20.5 21
CM 22.5 23 23.5 23.5 24 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 32 32.5 33 33.5 34 34.5 35 35.5 36 36.5 37 37.5 38 38.5 39 39.5 40
EU 35.5 36 36.5 37.5 38 38.5 39 40 40.5 41 42 42.5 43 44 44.5 45 45.5 46 47 47.5 48 48.5 49 49.5 50 50.5 51 51.5 52 52.5 53 53.5 54 54.5 55 55.5 56 56.5
Adidas Men's 

US

 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14 14.5
UK Unisex 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
EU Unisex 38.7 39.3 40 40.7 41.3 42 42.7 43.3 44 44.7 45.3 46 46.7 47.3 48 48.7 49.3 50
JP Unisex 240 245 250 255 260 265 270 275 280 285 290 295 300 305 310 315 320 325

Adidas Women's 

US 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13
UK Unisex 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
EU Unisex 36 36.7 37.3 38 38.7 39.3 40 40.7 41.3 42 42.7 43.3 44 44.7 45.3 46 46.7 47.3 48 48.7 49.3 50
JP Unisex 220 225 230 235 240 245 250 255 260 265 270 275 280 285 290 295 300 305 310 315 320 325
New Balance Men's 
US – Men's 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 14
UK 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13.5
CM 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 32
EU 38.5 39.5 40 40.5 41.5 42 42.5 43 44 44.5 45 45.5 46.5 47 47.5 49
New Balance Women's 
US – Women's 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12 12.5 13 13.5 14
UK 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12
CM 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5
EU 36 37 37.5 38 38.5 39.5 40 40.5 41.5 42 42.5 43 44 44.5 45 45.5 46.5 47
Asics Men's 
US 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12
UK 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11
EU 39 39.5 40 40.5 41.5 42 42.5 43.5 44 44.5 45 46 46.5
CM 24.5 25 25.3 25.5 26 26.5 27 27.5 28 28.3 28.5 29 29.5
Asics Women's 
US 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 11.5 12
UK 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10
EU 36 37 37.5 38 39 39.5 40 40.5 41.5 42 42.5 43.5 44 44.5
CM 22.5 23 23.5 24 24.5 25 25.3 25.5 26 26.5 27 27.5 28 28.3