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US Men | US Women | UK | EU | AUS/NZ | JPN | CN | MX | KOR | MOD | Length (Inches) | Length (cm) |
---|---|---|---|---|---|---|---|---|---|---|---|
4 | 5.5 | 3.5 | 36 | 3.5 | 23.5 | 36 | 4 | 241 | 232.5 | 9.5 | 24.1 |
5 | 6.5 | 4 | 37 | 4 | 24 | 37 | 4.5 | 246 | 236 | 9.7 | 24.6 |
6 | 7.5 | 5 | 38 | 5 | 24.5 | 38 | 5.5 | 251 | 239.5 | 9.9 | 25.1 |
6.5 | 8 | 5.5 | 39 | 5.5 | 25 | 39 | 6 | 256 | 243 | 10.1 | 25.6 |
7 | 8.5 | 6 | 40 | 6 | 25.5 | 40 | 6.5 | 261 | 246.5 | 10.3 | 26.1 |
8 | 9.5 | 7 | 41 | 7 | 26 | 41 | 7.5 | 266 | 250 | 10.5 | 26.6 |
9 | 10.5 | 8 | 42 | 8 | 27 | 42 | 8.5 | 271 | 253.5 | 10.7 | 27.1 |
9.5 | 11 | 8.5 | 43 | 8.5 | 27.5 | 43 | 9 | 276 | 257 | 10.9 | 27.6 |
10 | 11.5 | 9 | 44 | 9 | 28 | 44 | 9.5 | 281 | 260.5 | 11.1 | 28.1 |
10.5 | 12 | 9.5 | 45 | 9.5 | 28.5 | 45 | 10 | 286 | 264 | 11.3 | 28.6 |
11 | 12.5 | 10 | 46 | 10 | 29 | 46 | 10.5 | 291 | 267.5 | 11.5 | 29.1 |
12 | 13.5 | 11 | 47 | 11 | 29.5 | 47 | 11.5 | 296 | 271 | 11.7 | 29.6 |
13 | 14.5 | 12 | 48 | 12 | 30 | 48 | 12.5 | 301 | 274.5 | 11.9 | 30.1 |
How to Measure
Place your foot on a sheet of paper, mark heel to toe, and measure in centimeters. Compare your measurement with the chart above for the best fit. If you’re between sizes, we recommend choosing the larger size for comfort.

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FlexiGuard Aero 2: The Future of Lightweight Steel Toe Shoes
Say goodbye to the heavy, clunky boots that drag you down. The FlexiGuard Aero 2 is engineered to be the ultimate solution for workplace fatigue, making them the most comfortable and lightweight steel toe shoes you'll ever own. Weighing in at only ~0.42kg, their athletic design dramatically reduces strain on your feet and legs, helping you stay quick, agile, and energized throughout the longest shifts. The upper is made from a breathable mesh to keep your feet cool and dry.
While they feel like your favorite running shoes, the Aero 2 offers uncompromising industrial protection. At the front, a European standard steel toe guards against impacts, while a 4.0mm Kevlar midsole makes these premier lightweight steel toe shoes completely puncture-proof. This advanced, flexible shield stops nails and sharp objects without the stiffness of a traditional steel plate. The anti-slip, oil-resistant rubber outsole provides a secure grip on any surface, making them perfect for any fast-paced work environment.
Why Choose FlexiGuard Aero 2 Lightweight Steel Toe Shoes?
The Aero 2 is the perfect choice for electricians, warehouse crews, delivery drivers, and construction workers who need certified protection but crave the freedom of a sports sneaker. Don’t compromise. Stay protected and stay quick on your feet with the FlexiGuard Aero 2.
Workwear That Works for Everyone
From warehouses to delivery docks, FlexiGuard™ Core delivers the safety features you need without slowing you down.
Shipping & Returns
At ShieldTread, we know timing and peace of mind matter. That’s why we offer fast worldwide shipping, with most orders dispatched within 24–72 hours so you can get back to work without delays. All U.S. orders over $75 ship free, and we provide affordable international rates for our global customers.
Shop risk-free with our 30-Day Comfort Guarantee if your boots don’t fit right or meet your expectations, simply return or exchange them within 30 days. Our easy returns process is designed to be hassle-free, so you can order with complete confidence. With ShieldTread, you get reliable protection, fast delivery, and the flexibility you deserve.
Frequently Asked Questions
When will my order ship?
Most orders leave our warehouse within 24–48 hours. You’ll receive a tracking number as soon as your package is on the way.
Do you ship internationally?
Yes! We proudly ship worldwide. U.S. orders over $75 qualify for free shipping, and international shipping rates are calculated at checkout.
What is your return policy?
We offer a 30-Day Comfort Guarantee. If your ShieldTread boots don’t fit or meet your expectations, you can return or exchange them within 30 days hassle-free.
How do I start a return or exchange?
Simply contact our support team here . We’ll guide you step by step and make the process simple.
