S1P vs S3 Safety Shoes: Which One Does Your Team Need?

S1P and S3 are the two most common ratings on safety shoes in Egypt, and they look almost identical on the shelf. Both have a protective toe cap and a midsole that stops nails. The difference is what happens when the ground gets wet, muddy or uneven, and that decides which one your workers need.

The short answer: choose S1P for dry indoor work where something sharp could go through the sole. Choose S3 for outdoor sites, wet floors, mud, rain or rough ground.

What the letters mean

Safety shoes with a European rating are tested to EN ISO 20345. The rating printed on the tongue label tells you which protections the shoe passed. Each level adds to the one before it:

• SB: the basic safety shoe. Toe cap tested to 200 joules of impact and 15 kN of crushing.
• S1: SB plus a closed heel, antistatic sole and shock absorption in the heel.
• S1P: S1 plus a penetration-resistant midsole (the "P"), which stops a nail going through the sole.
• S2: S1 plus an upper that resists water. No anti-nail midsole.
• S3: S2 plus the penetration-resistant midsole and a cleated (deep-grip) outsole.

So S3 is everything S1P has, plus water resistance and a deeper tread.

S1P vs S3 side by side

When S1P is the right choice

S1P suits dry, indoor or level floors where there is a risk of stepping on nails, screws, metal offcuts or glass:

• warehouses and logistics
• factories and production lines
• workshops and maintenance bays
• indoor finishing work on construction projects

S1P shoes are often lighter and breathe better, which matters in an Egyptian summer when workers are on their feet for a full shift. Many come in a trainer style that workers are happier to wear.

Browse S1P safety shoes

When S3 is the right choice

S3 is built for outdoor and wet work:

• construction sites, especially groundwork, concrete and rough terrain
• oil and gas sites and refineries
• floors that are washed down, or anywhere with standing water
• farms, quarries and yards with mud or gravel

The water-resistant upper keeps feet dry through splashes and puddles, and the cleated sole grips loose ground where a flat S1P sole would slide.

Browse S3 safety boots and shoes

Four mistakes we see often

1. Thinking S3 means waterproof. S3 uppers resist water for a period of time, but the shoe is not sealed. For standing in water all day, look for the extra WR marking, or a rubber or PVC boot (rated S5).
2. Thinking S3 means an ankle boot. The rating is about protection, not height. You can get S3 low shoes and S1P ankle boots.
3. Buying S1 when there are nails on the floor. Without the "P", nothing stops a nail going through the sole. On any site with loose fixings, choose S1P or S3.
4. Assuming any safety shoe protects against electricity. "Antistatic" only drains static charge. Workers near live circuits need electrical insulating footwear to EN 50321. See our electrical hazards guide.

Reading the label: other markings worth knowing

You will see extra letters after the rating. The useful ones:

• SRC (older 2011 standard) or SR (2022 standard): extra slip resistance. On the 2011 standard, SRC is the highest slip rating. Under the 2022 standard every shoe passes a basic slip test, and SR adds a harder test on a tile covered in glycerine.
• HRO: outsole resists contact heat up to 300 °C. Useful for welding, asphalt and hot surfaces.
• FO: outsole resists fuel oil. Important in workshops, garages and oil and gas.
• CI / HI: insulation against cold or heat.
• WR: the whole shoe is water resistant, not just the upper.
• M: metatarsal protection over the top of the foot.
• ESD: controls static for electronics work. Different from "antistatic".
• P, PL or PS (2022 standard): the type of anti-nail midsole. P is a steel plate. PL and PS are lighter non-metal layers: PL is tested with the same 4.5 mm nail as steel, PS with a thinner 3 mm nail. You may see these written as S1PS, S1PL, S3S or S3L.

Both the 2011 and 2022 versions of the standard are still on sale. A shoe marked "EN ISO 20345:2011 S3 SRC" and one marked "EN ISO 20345:2022 S3 SR" both give S3 protection.

Steel or composite toe cap?

Both pass the same 200-joule test. Steel caps are thinner and usually cheaper. Composite caps are lighter, do not set off metal detectors and do not conduct heat or cold, which is more comfortable in the sun. The S1P or S3 rating is the same either way.

Questions buyers ask us

Is S3 better than S1P?

S3 has more protection, but it is not always better for the job. Indoors on dry floors, an S1P shoe is lighter and cooler, and workers are more likely to keep it on. Choose the rating that matches the ground, not the highest one.

Can my team wear S1P on a construction site?

For indoor finishing on dry floors, often yes. For groundwork, concrete, rain or mud, S3 is the usual requirement. Your company's risk assessment and the site's safety rules have the final say.

How do I know a shoe is really certified?

The rating should be printed on a label inside the tongue, with the standard number, the size and the manufacturer. Check the rating on each product page, and ask us for the data sheet or certificate if you need it for a tender or an audit.

Buying for a team

If you are equipping a crew, mix ratings by role: S3 for the site team, S1P for the warehouse and workshop. Send us the list with sizes through For Companies and we will quote within 24 working hours, with bulk prices from 20 pairs. Not sure which shoe fits your job? Try our Help me choose tool.