Haix safety shoes size chart
Updated: 16 October 2026
You are about to click a UK size on a Haix card, and a Haix safety shoes size chart will not settle it in one table. Lasts differ by model, and a half size is only a few millimetres. Start with your usual UK size, then check the insole the way Haix describes. The [Haix safety shoes comparison](/hub/occupational-safety/haix-safety-shoes) holds the seven cards. This page is the fit check. The Products Compared editorial team used Haix's fit FAQ and the review files, and updated this page on 16 October 2026. We did not measure your foot. A qualifying amazon.co.uk purchase can earn us a commission at no extra cost to you.
You are about to click a UK size on a Haix card, and a Haix safety shoes size chart will not settle it in one table. Lasts differ by model, and a half size is only a few millimetres.
You are about to click a UK size on a Haix card, and a Haix safety shoes size chart will not settle it in one table. Lasts differ by model, and a half size is only a few millimetres. Start with your usual UK size, then check the insole the way Haix describes. The Haix safety shoes comparison holds the seven cards. This page is the fit check. The Products Compared editorial team used Haix's fit FAQ and the review files, and updated this page on 16 October 2026. We did not measure your foot. A qualifying amazon.co.uk purchase can earn us a commission at no extra cost to you.
Our top picks
| Badge | Product | Height | Fastening | Range | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Haix Haix Black Eagle Safety 50 High | High | Lace lock | Black Eagle Safety 50 | 9.4 | about £183.09 | View offer |
| Best value |  Haix Haix Eagle | n/a | Laces and velcro | Eagle | 9.2 | about £145.47 | View offer |
| Alternative |  Haix Haix 604102 DIY | n/a | n/a | 604102 DIY | 9.2 | about £179.99 | View offer |
On this page
Start with a UK size, then the insole marks
Haix's fit FAQ tells you to stand on the insole with the heel flush and read the PerfectFit marks. A half UK size, on that FAQ, is about three to four millimetres. That gap can stop a toe brushing the end of the boot. Use the UK size you already wear in a work boot as the start.
The only card in this set that prints a size on the title is the 604102 DIY listing, size 8 UK, one offer. The Eagle card prints 0.03 x 0.03 x 0.03 cm. The buying guide keeps class ahead of fit, because a correct length in the wrong class is still the wrong boot.
Width is an insole, on the models that have one
Where Haix offers a width, the fit FAQ uses a coloured insole rather than a different length. Yellow is the wide-foot insole. Blue is the narrow-foot insole. Both exist only on the models that offer them. The 50 high page describes width as a thicker or thinner insole, which changes volume, not UK length.
A review on the 50 High card says the boot is a poor match for wide feet. A yellow insole that helps in a Black Eagle does not describe a Connexis. That family warning is on Black Eagle versus Connexis. If the length is right and the forefoot is still clamped, another half size will not open the sides.
What the reviews on these cards actually do
The files disagree, so they cannot become the chart. People say the shoes run half a size small, run true, and run large, sometimes inside one file. The 61 Low file is four texts, none marked United Kingdom: too small, a gap at the heel collar, and blisters. Those notes are a reason to use the insole method, not a reason to add a fixed size to every Haix order.
The Connexis file has one UK review, and it says the velcro would not close and the toe felt tight. That is a fault on that pair, not a millimetre rule for the 50 High.
When to stop and ask someone else
Hot spots on a short try-on are a signal to change length, width, or sock. Pain at the heel collar, and blisters from a collar that gapes or rubs, are a stop. They are not a break-in you owe the boot. Suitable PPE includes a fit you can work in, which sits with the employer when the assessment requires the boots.
A prescribed orthopaedic insole is for a podiatrist or occupational health. The 50 high page mentions DGUV 112-191. That German reference is not UK law. A thicker insole can lift you into the toe cap. Article 610019 at £119.99 prints Unisex Kids while the reviews describe adult work. That line is not a children's size chart.
Common questions
Do Haix boots run small?
Some reviews say half a size small, some say true to size, and some say too big, including inside this set of cards. Haix tells you to start from a normal size on the 50 high and to check the insole. The 61 Low file is the clearest small-fit cluster, and it is four texts, none marked United Kingdom. Use your usual UK work-boot size, stand with the heel flush, and move about three to four millimetres if the PerfectFit marks say so.
What do the yellow and blue insoles do?
On models that offer them, yellow is the wide-foot insole and blue is the narrow-foot insole. The 50 high page describes that choice as a thicker or thinner insole, so it changes volume. It does not change the UK length. A red insole is part of the colour system, and it is not a second size. If your model has no coloured insole, the width you feel is the last. Black Eagle and Connexis do not share one last, so copy a size across them only after the insole check.
Should I walk through blisters?
Heel-collar pain and blisters are a reason to stop, change size, or change the width insole. They are not a break-in to finish. The 61 Low texts, four of them and none from the UK, already mention a heel gap and blisters. Suitable PPE includes a fit you can wear, which is the employer's duty when the assessment requires the boots. Use the returns route while the pair is still clean enough to send back.
Can I put my own orthopaedic insole in?
Only with the clinician who prescribed it, and with the employer if they supply the boots as PPE. A deeper insole can lift your foot into the toe cap. Haix mentions DGUV 112-191 on the 50 high page for orthopaedic insoles, and that German reference is not UK law. If the prescribed insole and the certified boot cannot live together, occupational health needs a boot built for that insole. Do not remove the safety footbed and guess.
Why does one card say Unisex Kids?
The £119.99 card, article 610019, has Unisex Kids on the department line. Reviews describe adult work, including laces that loosen when kneeling and a UK report of a hole after site walking. The line is a listing conflict, not a children's fit guide, and it is not a reason to size an adult down. Other Haix material links 610019 to a Black Eagle Safety 40.1. The Amazon title does not. Fit an adult boot from an adult size, on a page whose photo matches.
Related pages
Sources
Public UK sources and the Haix UK shop, plus the seven amazon.co.uk cards in this set. Last checked 16 October 2026.
- HSE: Risk at work – personal protective equipment (PPE) (retrieved 16 October 2026)
- HSE: PPE regulations 2022, including limb (b) workers (retrieved 16 October 2026)
- HSE: PPE product safety and supply (retrieved 16 October 2026)
- HSE: Slips and trips – selecting footwear (retrieved 16 October 2026)
- Haix UK: standards and protection classes (retrieved 16 October 2026)
- Haix UK: Black Eagle Safety 50 high (retrieved 16 October 2026)
- Haix UK: shoes are too small (fit FAQ) (retrieved 16 October 2026)
- Sievi: EN ISO 20345:2022 safety footwear standard (retrieved 16 October 2026)
- HAIX company profile (retrieved 16 October 2026)
- HAIX UK imprint (retrieved 16 October 2026)
- Haix UK: Airpower XR3 (retrieved 16 October 2026)
- Haix UK: Black Eagle Safety 61.1 low (retrieved 16 October 2026)
- Haix UK: Connexis Safety T S1P (retrieved 16 October 2026)