Nitro
Couldn't load pickup availability
Because the foot is three-dimensional, any two-dimensional measuring tool, such as a ruler or Brannok device®, can only approximate your true shoe size. Please also keep in mind that sizing may vary slightly between manufacturers.
Make sure you are standing and wearing the socks or stockings you will wear with your new shoes or boots. Place your heel against a straight edge. Place a ruler beside your foot and measure from the straight edge at your heel to the tip of your longest toe. Using one of the following charts, convert your inch or centimeter measurement to your shoe size.
Note: It's very common for one foot to be slightly larger than the other. Be sure to measure both feet and use the larger size to ensure comfort.
Properly fit boots should be snug in the instep, arch and ball of foot. Heel slippage is normal for a good fit. Boots will ‘break in’ and conform to your foot.
Women's Sizes
| US | Euro | UK | Inches | CM |
|---|---|---|---|---|
| 4 | 35 | 2 | 8.1875" | 20.8 |
| 4.5 | 35 | 2.5 | 8.375" | 21.3 |
| 5 | 35-36 | 3 | 8.5" | 21.6 |
| 5.5 | 36 | 3.5 | 8.75" | 22.2 |
| 6 | 36-37 | 4 | 8.875" | 22.5 |
| 6.5 | 37 | 4.5 | 9.0625" | 23 |
| 7 | 37-38 | 5 | 9.25" | 23.5 |
| 7.5 | 38 | 5.5 | 9.375" | 23.8 |
| 8 | 38-39 | 6 | 9.5" | 24.1 |
| 8.5 | 39 | 6.5 | 9.6875" | 24.6 |
| 9 | 39-40 | 7 | 9.875" | 25.1 |
| 9.5 | 40 | 7.5 | 10" | 25.4 |
| 10 | 40-41 | 8 | 10.1875" | 25.9 |
| 10.5 | 41 | 8.5 | 10.3125" | 26.2 |
| 11 | 41-42 | 9 | 10.5" | 26.7 |
| 11.5 | 42 | 9.5 | 10.6875" | 27.1 |
| 12 | 42-43 | 10 | 10.875" | 27.6 |
Men's Sizes
| US | Euro | UK | Inches | CM |
|---|---|---|---|---|
| 6 | 39 | 5.5 | 9.25" | 23.5 |
| 6.5 | 39 | 6 | 9.5" | 24.1 |
| 7 | 40 | 6.5 | 9.625" | 24.4 |
| 7.5 | 40-41 | 7 | 9.75" | 24.8 |
| 8 | 41 | 7.5 | 9.9375" | 25.4 |
| 8.5 | 41-42 | 8 | 10.125" | 25.7 |
| 9 | 42 | 8.5 | 10.25" | 26 |
| 9.5 | 42-43 | 9 | 10.4375" | 26.7 |
| 10 | 43 | 9.5 | 10.5625" | 27 |
| 10.5 | 43-44 | 10 | 10.75" | 27.3 |
| 11 | 44 | 10.5 | 10.9375" | 27.9 |
| 11.5 | 44-45 | 11 | 11.125" | 28.3 |
| 12 | 45 | 11.5 | 11.25" | 28.6 |
| 13 | 46 | 12.5 | 11.5625" | 29.4 |
| 14 | 47 | 13.5 | 11.875" | 30.2 |
| 15 | 48 | 14.5 | 12.1875" | 31 |
| 16 | 49 | 15.5 | 12.5" | 31.8 |
Toddler/Infant Sizes (0-12 Months)
| US | Euro | UK | Inches | CM |
|---|---|---|---|---|
| 0.5 | 16 | 0 | 3.25" | 8.3 |
| 1 | 16 | 0.5 | 3.5" | 8.9 |
| 1.5 | 17 | 1 | 3.625" | 9.2 |
| 2 | 17 | 1 | 3.75" | 9.5 |
| 2.5 | 18 | 1.5 | 4" | 10.2 |
| 3 | 18 | 2 | 4.125" | 10.5 |
| 3.5 | 19 | 2.5 | 4.25" | 10.8 |
| 4 | 19 | 3 | 4.5" | 11.4 |
| 4.5 | 20 | 3.5 | 4.625" | 11.7 |
| 5 | 20 | 4 | 4.75" | 12.1 |
Children's Sizes (1-5 Years)
| US | Euro | UK | Inches | CM |
|---|---|---|---|---|
| 5.5 | 21 | 4.5 | 5" | 12.7 |
| 6 | 22 | 5 | 5.125" | 13 |
| 6.5 | 22 | 5.5 | 5.25" | 13.3 |
| 7 | 23 | 6 | 5.5" | 14 |
| 7.5 | 23 | 6.5 | 5.625" | 14.3 |
| 8 | 24 | 7 | 5.75" | 14.6 |
| 8.5 | 25 | 7.5 | 6" | 15.2 |
| 9 | 25 | 8 | 6.125" | 15.6 |
| 9.5 | 26 | 8.5 | 6.25" | 15.9 |
| 10 | 27 | 9 | 6.5" | 16.5 |
| 10.5 | 27 | 9.5 | 6.625" | 16.8 |
| 11 | 28 | 10 | 6.75" | 17.1 |
| 11.5 | 29 | 10.5 | 7" | 17.8 |
| 12 | 30 | 11 | 7.125" | 18.1 |
Youth Sizes (6-12 Years)
| US | Euro | UK | Inches | CM |
|---|---|---|---|---|
| 12.5 | 30 | 11.5 | 7.25" | 18.4 |
| 13 | 31 | 12 | 7.5" | 19.1 |
| 13.5 | 31 | 12.5 | 7.625" | 19.4 |
| 1 | 32 | 13 | 7.75" | 19.7 |
| 1.5 | 33 | 14 | 8" | 20.3 |
| 2 | 33 | 1 | 8.125" | 20.6 |
| 2.5 | 34 | 1.5 | 8.25" | 21 |
| 3 | 34 | 2 | 8.5" | 21.6 |
| 3.5 | 35 | 2.5 | 8.625" | 21.9 |
| 4 | 36 | 3 | 8.75" | 22.2 |
| 4.5 | 36 | 3.5 | 9" | 22.9 |
| 5 | 37 | 4 | 9.125" | 23.2 |
| 5.5 | 37 | 4.5 | 9.25" | 23.5 |
| 6 | 38 | 5 | 9.5" | 24.1 |
| 6.5 | 38 | 5.5 | 9.625" | 24.4 |
| 7 | 39 | 6 | 9.75" | 24.8 |
Step into the Nitro. Designed for tough jobs and long hours, this rugged work boot offers a perfect combination of protection, comfort, and durability. With a composite toe and full grain leather design, it offers maximum protection while still allowing for easy on and off. The cushion ergonomic foam insole and cement construction provide lasting comfort and support for all-day wear.
ASTM F2413-18 M/I/C EH
ASTM F3445-21 SLIP RESISTANT OUTSOLE WITH P/U MIDSOLE
Handmade With Care to Last
FAQs
How do I choose the right boot size?
Our boots fit true to size, but some styles may require a snug fit at first. Check our size guide or visit a French’s store near you for expert fitting.
Are your boots made from real leather?
Yes! French’s boots are crafted from premium, genuine leather and high-quality exotic skins for durability and comfort.
Do you offer free shipping?
Yes! We offer free shipping on orders over $99 within the U.S. Standard shipping rates apply for orders below this amount.
How long does shipping take?
Orders are typically processed within 1-2 business days. Standard shipping takes 3-7 business days, while expedited options are available at checkout.
What is your return policy?
We offer hassle-free returns within 30 days of purchase, as long as the boots are unworn and in original packaging.
