S1P vs S3 safety boots
Updated: 17 October 2026
The paperwork says S1P or S3, and a title makes S3 sound like a stronger toe. It is not. S1P vs S3 safety boots is a difference of upper and sole, on a package both codes already share. The Products Compared editorial team, in October 2026, used public UK notes on EN ISO 20345 and the twelve amazon.co.uk listings here. No pair was lab-tested. A qualifying purchase can earn a commission at no extra cost to you. The rows are on the [safety shoes comparison](/hub/protective-clothing/safety-shoes). The wider ladder is on [how to choose safety shoes](/hub/protective-clothing/safety-shoes/sub/safety-shoes-buying-guide).
The paperwork says S1P or S3, and a title makes S3 sound like a stronger toe. It is not. S1P vs S3 safety boots is a difference of upper and sole, on a package both codes already share.
The paperwork says S1P or S3, and a title makes S3 sound like a stronger toe. It is not. S1P vs S3 safety boots is a difference of upper and sole, on a package both codes already share. The Products Compared editorial team, in October 2026, used public UK notes on EN ISO 20345 and the twelve amazon.co.uk listings here. No pair was lab-tested. A qualifying purchase can earn a commission at no extra cost to you. The rows are on the safety shoes comparison. The wider ladder is on how to choose safety shoes.
Our top picks
| Badge | Product | Printed code | Upper | Midsole | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Titan Safety Footwear Titan Argon S3 | S3 SR FO, 2022 | Microfibre | Protective | 8.5 | about £10.96 | View offer |
| Best value |  Blackrock Blackrock Chukka | SB-P SRC in a review | Leather, reviews | Steel, review | 9.1 | about £15.95 | View offer |
| Alternative |  VAVOBIS VAVOBIS steel toe trainers | No class in details | Not stated | Puncture proof in title | 7.4 | about £21.99 | View offer |
On this page
What both codes already include
S1 is a safety toe plus a closed seat, antistatic properties, and energy absorption in the heel. S1P adds a penetration-resistant insert. That insert is the P, and it is why a dry job with nails or offcuts asks for S1P. S3 includes the same package. The standard's toe test is 200 joules of impact and 15 kilonewtons of compression. Those are the standard's levels, not a test of this table. S3 does not raise them.
Some retailer grids fold fuel-oil resistance into S1. This page keeps FO as extra letters. If the sheet names FO, look for them. Once the toe and the insert are shared, the remaining difference is water on the upper and the ground under the sole. A marked S1P trainer can be right on a dry floor and wrong in a wet yard.
The two things S3 adds
S3 adds a water-resistant upper and a cleated outsole. The upper claim is resistance to water in the material. If the policy says waterproof, or the job is wading, S3 is the wrong place to stop reading. Cleats suit mud and rough ground. On a smooth indoor floor they can be less pleasant for eight hours, which is why a dry warehouse often stays with S1P when nails are the risk.
The Titan title prints S3 SR FO. SR is the extra glycerine slip test on a 2022 boot, not a second toe test. FO is fuel and oil resistance, which is not slip resistance.
Warehouse, yard, or site
Use S1P for dry indoor work with a penetration risk: stray nails, offcuts, a hard floor that does not soak the upper. A properly marked safety trainer is often S1P for that reason. The shape can be right only if the marking is there. Use S3 when the upper must resist water and the sole must be cleated, such as a yard or a wet site. A catalogue that calls S3 the usual construction boot is shorthand, not a statute for every UK plot. The sheet overrides a wish for a lighter shoe.
Buying S3 against an S1P sheet gives you extras, not a higher toe. Buying S1P against an S3 sheet misses the upper and the cleat. Wet socks by mid-morning are that miss in practice.
Which listings print a code
Only the Titan Argon TS23 prints S3, SR, FO and EN ISO 20345:2022. It is £10.96, with 4.4 from 89 reviews, and it is an ankle boot. The details do not say waterproof. No listing prints S1P. If your sheet says S1P, you will not find it printed in this set. A steel-toe trainer that looks the part is still a guess.
The Blackrock chukka, at £15.95 with 4.3 from 19,347 reviews, has EN 20345 SB-P SRC in a review of the SF02. SB-P is neither S1P nor S3, and the sentence is not in the details table. The other ten trainers print no class. VAVOBIS says puncture proof, and a review says the sole punctured. That is not a P code. Who each row suits, once you accept the gaps, is on best safety trainers in this set. If the code you need is absent, leave the table. When the listing and the sheet disagree, a competent person owns the assessment.
Common questions
What does S1P include that S1 does not?
S1P adds a penetration-resistant insert. S1 already has the safety toe, a closed seat, antistatic properties, and heel energy absorption. The P is for nails and sharp objects underfoot. It is not a tougher toe and not a waterproof upper.
What does S3 add that S1P does not?
A water-resistant upper and a cleated outsole. The toe test and the penetration insert are already in the shared package. S3 is not a higher impact figure. You may see S3L or S3S on 2022 footwear, for the insert test. None of those suffixes appears in this set.
Is the toe test higher on S3?
No. The safety toe stays at 200 joules of impact and 15 kilonewtons of compression across these classes. Those are the standard's levels, not a lab result for these pairs. Choose S3 because you need the upper and the cleat.
Can I wear S1P trainers on a building site?
Only if that site's assessment accepts S1P. No single statute writes S3 onto every plot. Many sites still specify S3 or S7 because mud and rain are the extras S3 was written for. An S1P trainer can be right indoors and wrong in standing water. This comparison does not print an S1P trainer in any case.
Is a water-resistant upper the same as waterproof?
No. The S3 claim is a water-resistant upper. A further whole-boot water test, in the 2022 edition, is associated with S7. Nothing here is marked S7. The Titan details do not say waterproof, even with S3 in the title. If the policy says waterproof, ask which test is meant before you stop at S3.
What happened to SRC?
SRC was the old slip mark for water and oil together. On new 2022 certifications the basic slip test has no letters, and SR is the extra glycerine test. Read an old S3 SRC policy, for a new boot, as S3 plus SR if you still want that harder test. An older boot can keep the SRC it was certified with. If the letters clash, ask for the surface and the coefficient.
Related pages
Sources
Public UK sources and the amazon.co.uk listings used for this comparison, last checked on 17 October 2026.
- HSE, PPE overview (retrieved 17 October 2026)
- HSE, PPE FAQ (retrieved 17 October 2026)
- Personal Protective Equipment at Work Regulations 1992 (retrieved 17 October 2026)
- HSE, product safety and supply (retrieved 17 October 2026)
- HSE, slip-resistant footwear (retrieved 17 October 2026)
- HSE, construction PPE FAQ (retrieved 17 October 2026)
- UK Slip Resistance, EN ISO 20345:2022 (retrieved 17 October 2026)
- BSI preview, BS EN ISO 20345:2022+A1:2024 (retrieved 17 October 2026)