Steel vs Composite: Which Toecap Is Better?

Often when I speak to workers about their safety gear – especially when it comes to PPE – I hear the same line:

"Oh, we always have to wear steel-toe boots."

When I hear this, a small part of me screams inside – but because I’m British, naturally I keep a stiff upper lip.

So why does it frustrate me? Because safety footwear is about so much more than just “steel toes”, and other important materials often get completely overlooked.

Understanding the Standards

The European standard for safety footwear is EN ISO 20345 . According to this standard, safety shoes must withstand a certain level of impact and pressure – in other words, they have to protect your feet if something heavy drops on them.

More specifically, the toe cap must be able to withstand an impact energy of 200 joules (J) .

What does 200J mean?

Joules measure energy – the amount of work done when a force of 1 newton is applied over a distance of 1 metre:

1 Joule (J) = 1 Newton (N) × 1 metre (m)

Examples:

Dropping a 2 kg object (like a hammer) from 10 metres = ~200J
Dropping a 20 kg box from 1 metre = ~200J

(The higher the drop, the more energy is released.)

To meet this standard, safety shoes must have a protective toecap – and all shoes with an “S” rating include this feature.

But remember: that toecap doesn’t have to be steel!

Steel Toecaps vs Composite Toecaps

Traditionally, safety footwear came with steel toecaps. The first safety shoes developed in the 1930s had steel caps. But since the 1970s, composite materials like Kevlar, fibreglass, and carbon fibre have also been used.

According to the EN ISO 20345 standard, both types must pass the same tests – but they have different pros and cons.

🥾 Steel Toecaps

Pros:

Strength: Often stronger than composites
Cost-effective: Usually cheaper to produce
Slimmer: Can be made thinner, allowing for a sleeker shoe
Durability: Robust and long-lasting

Cons:

Heavy: Can cause fatigue over time (though new lightweight versions exist)
Conductive: Transfers heat, cold, and electricity
Metal Detectors: Sets off alarms – shoes may need to be removed

👟 Composite Toecaps

Pros:

Lightweight: Reduces foot fatigue
Non-conductive: Great for working around electricity or extreme temperatures
Detector-friendly: Won’t set off metal detectors

Cons:

Thicker: To match steel’s protection, more material is needed – bulkier design
Expensive: More costly to manufacture
Slightly Less Strong: While still 200J certified, may not be ideal for very heavy tasks

Which Should I Choose?

When choosing safety footwear, think about your environment:

Extreme heat/cold or electrical hazards? → Composite might be best
Heavy equipment or construction work? → Steel is probably safer
Frequent metal detectors (e.g. airports)? → Composite will save you time

Also consider other factors like:

Slip resistance
Waterproofing
Overall comfort

Thanks for reading!

(By the way: I aim to keep all my content free and unbiased. I don’t accept sponsorships for these articles, and I intend to keep it that way. If you’d like to support this creative work, you’re very welcome to buy me a coffee — but there’s absolutely no obligation!. https://coff.ee/ldsafety )