New Balance M1540nb4 Nb Navy
The Made in USA Fresh Foam 1540v4 marks the next evolution of our trusted 1540 series—reimagined to push beyond traditional expectations and built to deliver premium stability, comfort, and modern aesthetics, this update is designed to support an active lifestyle.
At the core of the 1540v4 is our signature Fresh Foam midsole, providing ultra-cushioned support for a soft, smooth ride. Enhanced ROLLBAR technology offers superior medial and lateral rearfoot stability, giving wearers the confidence to move with purpose.
The engineered mesh upper blends structure and breathability, ensuring all-day comfort and support, while a new dual insert system offers personalized fit customization to accommodate a variety of foot shapes and needs.
Combining performance-driven innovation with sleek, versatile styling, the Fresh Foam 1540v4 is more than a stability trainer—it’s a step toward a more active lifestyle.
Size Conversions
The size charts below show conversions between different footwear sizes. Please be aware that shoe size can vary between different brands, so these charts provide an indication only - if you are unsure of your size, please contact us and we'd be happy to help.
Mens Footwear
| US & Canada |
UK |
Europe |
Inches |
Centimeters |
| 6 |
5.5 |
39 |
9.3 |
23.5 |
| 6.5 |
6 |
39 |
9.5 |
24.1 |
| 7 |
6.5 |
40 |
9.6 |
24.4 |
| 7.5 |
7 |
40-41 |
9.8 |
24.8 |
| 8 |
7.5 |
41 |
9.9 |
25.4 |
| 8.5 |
8 |
41-42 |
10.1 |
25.7 |
| 9 |
8.5 |
42 |
10.3 |
26 |
| 9.5 |
9 |
42-43 |
10.4 |
26.7 |
| 10 |
9.5 |
43 |
10.6 |
27 |
| 10.5 |
10 |
43-44 |
10.8 |
27.3 |
| 11 |
10.5 |
44 |
10.9 |
27.9 |
| 11.5 |
11 |
44-45 |
11.1 |
28.3 |
| 12 |
11.5 |
45 |
11.3 |
28.6 |
| 13 |
12.5 |
46 |
11.6 |
29.4 |
| 14 |
13.5 |
47 |
11.9 |
30.2 |
| 15 |
14.5 |
48 |
12.2 |
31 |
| 16 |
15.5 |
49 |
12.5 |
31.8 |
Womens Footwear
| US & Canada |
UK |
Europe |
Inches |
Centimeters |
| 4 |
2 |
35 |
8.2 |
20.8 |
| 4.5 |
2.5 |
35 |
8.3 |
21.3 |
| 5 |
3 |
35-36 |
8.5 |
21.6 |
| 5.5 |
3.5 |
36 |
8.8 |
22.2 |
| 6 |
4 |
36-37 |
8.9 |
22.5 |
| 6.5 |
4.5 |
37 |
9.1 |
23 |
| 7 |
5 |
37-38 |
9.3 |
23.5 |
| 7.5 |
5.5 |
38 |
9.4 |
23.8 |
| 8 |
6 |
38-39 |
9.5 |
24.1 |
| 8.5 |
6.5 |
39 |
9.7 |
24.6 |
| 9 |
7 |
39-40 |
9.9 |
25.1 |
| 9.5 |
7.5 |
40 |
10 |
25.4 |
| 10 |
8 |
40-41 |
10.2 |
25.9 |
| 10.5 |
8.5 |
41 |
10.3 |
26.2 |
| 11 |
9 |
41-42 |
10.5 |
26.7 |
| 11.5 |
9.5 |
42 |
10.7 |
27.1 |
| 12 |
10 |
42-43 |
10.9 |
27.6 |
Big Kids' Footwear (7 - 12 Years)
| US & Canada |
UK |
Europe |
Inches |
Centimeters |
| 3.5 |
2.5 |
35 |
8.6 |
21.9 |
| 4 |
3 |
36 |
8.8 |
22.2 |
| 4.5 |
3.5 |
36 |
9 |
22.9 |
| 5 |
4 |
37 |
9.1 |
23.2 |
| 5.5 |
4.5 |
37 |
9.3 |
23.5 |
| 6 |
5 |
38 |
9.5 |
24.1 |
| 6.5 |
5.5 |
38 |
9.6 |
24.4 |
| 7 |
6 |
39 |
9.8 |
24.8 |
Little Kids' Footwear (4 - 7 Years)
| US & Canada |
UK |
Europe |
Inches |
Centimeters |
| 10.5 |
9.5 |
27 |
6.6 |
16.8 |
| 11 |
10 |
28 |
6.8 |
17.1 |
| 11.5 |
10.5 |
29 |
7 |
17.8 |
| 12 |
11 |
30 |
7.1 |
18.1 |
| 12.5 |
11.5 |
30 |
7.3 |
18.4 |
| 13 |
12 |
31 |
7.5 |
19.1 |
| 13.5 |
12.5 |
31 |
7.6 |
19.4 |
| 1 |
13 |
32 |
7.8 |
19.7 |
| 1.5 |
14 |
33 |
8 |
20.3 |
| 2 |
1 |
33 |
8.1 |
20.6 |
| 2.5 |
1.5 |
34 |
8.3 |
21 |
| 3 |
2 |
34 |
8.5 |
21.6 |
Toddlers' Footwear (9 Months - 4 Years)
| US & Canada |
Europe |
UK |
Inches |
Centimeters |
| 3.5 |
19 |
2.5 |
4.3 |
10.8 |
| 4 |
19 |
3 |
4.5 |
11.4 |
| 4.5 |
20 |
3.5 |
4.6 |
11.7 |
| 5 |
20 |
4 |
4.8 |
12.1 |
| 5.5 |
21 |
4.5 |
5 |
12.7 |
| 6 |
22 |
5 |
5.1 |
13 |
| 6.5 |
22 |
5.5 |
5.3 |
13.3 |
| 7 |
23 |
6 |
5.5 |
14 |
| 7.5 |
23 |
6.5 |
5.6 |
14.3 |
| 8 |
24 |
7 |
5.8 |
14.6 |
| 8.5 |
25 |
7.5 |
6 |
15.2 |
| 9 |
25 |
8 |
6.1 |
15.6 |
| 9.5 |
26 |
8.5 |
6.3 |
15.9 |
| 10 |
27 |
9 |
6.5 |
16.5 |
Infants' Footwear (0 - 9 Months)
| US & Canada |
UK |
Europe |
Inches |
Centimeters |
| 0 |
0 |
15 |
3.1 |
7.9 |
| 1 |
0.5 |
16 |
3.5 |
8.9 |
| 1.5 |
1 |
17 |
3.6 |
9.2 |
| 2 |
1 |
17 |
3.8 |
9.5 |
| 2.5 |
1.5 |
18 |
4 |
10.2 |
| 3 |
2 |
18 |
4.1 |
10.5 |
