Nike Strength Size Guide
Nike Strength delivers performance footwear and apparel engineered for athletic training, CrossFit, weightlifting, and high-intensity workouts. Known for a snug, supportive fit that prioritises stability and responsiveness, Nike Strength products typically run slightly smaller than standard athletic brands. The fit philosophy emphasises a secure midfoot and heel lock, with pronounced arch support suited to those with natural foot arches. This guide covers trainers, running shoes, and training apparel across men's and women's ranges.
How to Measure
- For foot length: tape a piece of paper to a hard, flat surface, ensuring it does not slip.
- Stand on the paper with feet shoulder-width apart, weight evenly balanced. Measure only one foot at a time.
- With a pen or pencil held vertically, ask a partner to mark the tip of your big toe and the outermost part of your heel.
- Step off the paper and use a ruler or tape measure to measure the distance between the two marks in centimetres or inches.
- Repeat with your other foot. It is common for one foot to differ slightly; use the longer measurement.
- For clothing: measure chest at its fullest point, waist at the natural waist line, and hips at the fullest part. Wear minimal clothing and keep the tape measure parallel to the ground.
- If your foot length falls between sizes, Nike recommends sizing up for a more comfortable fit.
Men's Training Shoes Size Chart
| UK | US Men's | EU | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 5 | 6 | 38.5 | 24.1 | 9 1/2 |
| 5.5 | 6.5 | 39 | 24.5 | 9 11/16 |
| 6 | 7 | 40 | 25 | 9 13/16 |
| 6.5 | 7.5 | 40.5 | 25.4 | 10 |
| 7 | 8 | 41 | 25.8 | 10 3/16 |
| 7.5 | 8.5 | 42 | 26.2 | 10 5/16 |
| 8 | 9 | 42.5 | 26.7 | 10 1/2 |
| 8.5 | 9.5 | 43 | 27.1 | 10 11/16 |
| 9 | 10 | 44 | 27.5 | 10 13/16 |
| 9.5 | 10.5 | 44.5 | 27.9 | 11 |
| 10 | 11 | 45 | 28.3 | 11 3/16 |
| 10.5 | 11.5 | 45.5 | 28.8 | 11 5/16 |
| 11 | 12 | 46 | 29.2 | 11 1/2 |
| 11.5 | 12.5 | 47 | 29.6 | 11 11/16 |
| 12 | 13 | 48 | 30 | 11 13/16 |
Women's Training Shoes Size Chart
| UK | US Women's | EU | Foot Length (cm) | Foot Length (inches) |
|---|---|---|---|---|
| 2.5 | 5 | 35.5 | 22 | 8 5/8 |
| 3 | 5.5 | 36 | 22.4 | 8 13/16 |
| 3.5 | 6 | 36.5 | 22.9 | 9 |
| 4 | 6.5 | 37.5 | 23.3 | 9 3/16 |
| 4.5 | 7 | 38 | 23.7 | 9 5/16 |
| 5 | 7.5 | 38.5 | 24.1 | 9 1/2 |
| 5.5 | 8 | 39 | 24.5 | 9 11/16 |
| 6 | 8.5 | 40 | 25 | 9 13/16 |
| 6.5 | 9 | 40.5 | 25.4 | 10 |
| 7 | 9.5 | 41 | 25.8 | 10 3/16 |
| 7.5 | 10 | 42 | 26.2 | 10 3/8 |
| 8 | 10.5 | 42.5 | 26.7 | 10 1/2 |
| 8.5 | 11 | 43 | 27.1 | 10 5/8 |
| 9 | 11.5 | 44 | 27.5 | 10 13/16 |
| 9.5 | 12 | 44.5 | 27.9 | 11 |
Men's Training Apparel Size Chart
| Size | UK/EU | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|
| XS | XXS | 72–80 | 57–65 | 72–80 |
| S | XS | 80–88 | 65–73 | 80–88 |
| M | S | 88–96 | 73–81 | 88–96 |
| L | M | 96–104 | 81–89 | 96–104 |
| XL | L | 104–112 | 89–97 | 104–112 |
| XXL | XL | 112–124 | 97–109 | 112–120 |
| 3XL | XXL | 124–136 | 109–121 | 120–128 |
Women's Training Apparel Size Chart
| Size | UK/EU | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|
| XS | XXS | 70–76 | 54–60 | 78–84 |
| S | XS | 76–83 | 60–67 | 84–91 |
| M | S | 83–90 | 67–74 | 91–98 |
| L | M | 90–97 | 74–81 | 98–105 |
| XL | L | 97–104 | 81–88 | 105–112 |
| XXL | XL | 104–114 | 88–98 | 112–120 |
| 1X | XXL | 114–124 | 104–114 | 118–128 |
Product-Specific Guidance
Training & CrossFit Shoes
Nike Strength trainers are engineered for lateral support, weightlifting stability, and high-intensity interval work. The midsole is typically firmer than road-running shoes, with a lower heel-to-toe drop for better ground contact during squats and deadlifts. Width-wise, these shoes run snug through the midfoot; individuals with wider feet should consider sizing up by half a size. The toebox offers adequate room for natural toe splay, but the heel counter is deliberately snug to prevent slipping during explosive movements.
Running & Cardio Shoes
Nike Strength running shoes balance responsiveness with durability for metabolic conditioning. They run approximately half a size smaller than standard athletic shoe brands. A pronounced arch support is standard; those with flat feet may experience initial discomfort until the shoe is broken in. Always measure your foot length in centimetres and cross-reference the chart above rather than relying on your usual dress shoe size.
Training Apparel (Tops & Leggings)
Nike Strength tops and leggings are cut for freedom of movement during athletic training. Tops tend to run slightly smaller in the shoulders and chest; if you are between sizes, size up for layering flexibility. Leggings offer high waist coverage and a compression-style fit; measure your natural waist rather than your hip measurement to ensure comfort during holds and loaded carries.
Sizing Tips
- Nike Strength shoes run small. If you typically wear a UK 9 in other brands, try a UK 9.5 or 10 in Nike Strength trainers. Always refer to foot length in centimetres as the most reliable measure.
- Measure both feet. It is common for one foot to be up to half a centimetre longer. Always use the longer measurement when consulting the size chart.
- Account for arch support. Nike Strength shoes feature a higher, more pronounced arch than many competitors. If you have flat feet or low arches, allow extra time for the shoe to break in, or consider an aftermarket insole for additional comfort.
- Width matters in trainers. Men with wide forefeet should size up by half a size; women with wide feet may benefit from sizing up a full size, especially in cross-training models. The heel counter, however, remains snug by design for stability.
- Try shoes in the afternoon or evening. Feet naturally swell throughout the day. Measure and try on shoes when your feet are at their largest to ensure a proper fit during workouts.
- Apparel sizing differs between men and women. Do not assume a men's Medium will fit the same as a women's Medium. Women's Nike Strength tops are cut narrower through the shoulders and chest; refer to the separate women's chart above.
- Break-in period is normal. Many wearers report that Nike Strength shoes feel slightly small initially but become more comfortable after 5–10 wears. The synthetic uppers and foam midsoles adapt to your foot shape.
- EU and CM sizes are not foot length. The CM or JP size printed on the shoe box refers to the internal shoe volume, not your actual foot length in centimetres. Always measure your foot directly and match it to the "Foot Length (cm)" column in the chart.