Fit & sizing
Size Guide
General sizing guidance across A1 PPE workwear and safety footwear. Individual products may size differently — always check the product page for brand-specific charts.
Effective from · 1 August 2026
How to measure
Use a soft tape measure over base-layer clothing. Keep the tape level and snug but not tight. For the most reliable fit, measure chest at the fullest point, waist at the natural waistline, and hips at the widest point.
Clothing (inches)
| Size | Chest | Waist | Hip |
|---|---|---|---|
| XS | 34–36 | 28–30 | 34–36 |
| S | 36–38 | 30–32 | 36–38 |
| M | 38–40 | 32–34 | 38–40 |
| L | 40–42 | 34–36 | 40–42 |
| XL | 42–44 | 36–38 | 42–44 |
| 2XL | 44–46 | 38–40 | 44–46 |
| 3XL | 46–48 | 40–42 | 46–48 |
Safety footwear conversions
| UK | EU | US (M) | CM |
|---|---|---|---|
| 6 | 39 | 6.5 | 24.5 |
| 7 | 40/41 | 7.5 | 25.5 |
| 8 | 42 | 8.5 | 26.5 |
| 9 | 43 | 9.5 | 27.5 |
| 10 | 44 | 10.5 | 28.5 |
| 11 | 45/46 | 11.5 | 29.5 |
| 12 | 47 | 12.5 | 30.5 |
| 13 | 48 | 13.5 | 31.5 |
Conversions are approximate and vary by manufacturer.
Gloves
Glove sizing typically runs 7 (S) to 11 (2XL). Measure the circumference of your dominant hand around the knuckles, excluding the thumb, in inches — the result approximates your glove size.
Fit tips
- Waterproofs and insulated layers are often cut to fit over base and mid layers — no need to size up.
- Hi-vis polos and t-shirts run true to size for most brands.
- Safety boots benefit from being tried on with the socks you'll wear on site.
- If you're between sizes on trousers, size up and take up the leg length if needed.
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