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ONYX S3S FO CI SC SR
CE EN ISO 20345:2022+A1:2024 S3S FO CI SC SR
3U458N
Safety boot
Description
  • Toecap: 200J polymeric composite non-thermic.
  • Upper: Nubuck Grain Leather Hydro 1,8-2,0 mm and PU-covered heel.
  • Midsole: PS certified antiperforation composite fabric.
  • Insole: Memory open-cell polyurethane, anatomical, extra comfort.
  • Sole: PU/Outsole, PU/Midsole, PU/Upper sole.
  • Other: Scuff Cap, Anti-torsion sole shank.
ONYX S3S FO CI SC SR
37-49
Description and further information
High safety shoe made of full-grain Nubuck IDROTECH® WRU leather, thickness 1.82.0 mm. Heel covered in PU, resistant to high stress and highly abrasion-resistant.
Lining in breathable and abrasion-resistant fabric.
The heel area is reinforced with tear- and abrasion-resistant microfiber, anti-slip, helping to stabilize the foot during movement. Shoe with reflective fabric insert.
Soft, lined and padded tongue.
TOE CAP: 200J polymer-based composite, thermal insulation, compliant with EN 22568
ANTI-PERFORATION MIDSOLE: PS flexible composite fabric, compliant with EN 22568
SOLE: 3ULTRA triple-density polyurethane, antistatic, resistant to hydrolysis ISO 5423:92, hydrocarbons and abrasion, anti-shock and anti-slip
ANTI-TORSION: insert in the sole for stability on uneven surfaces
MEMORY INSOLE: tri-material extra-comfort insole with soft PU memory foam cushion in the heel, fatigue-reducing and resistant to body pressure. Breathable, removable, anatomical, absorbent, antibacterial and ESD.
FO: outsole resistance to hydrocarbons
CI: cold-insulated sole 17°C
SC: abrasion resistance of toe protection
SR: slip resistance
Size 3749  Shoe weight size 42: 615 g
Size guide
Size guide
Comparison table of measurements
EUROPAUKUSMILLIMETERSINCHES
34
2

3

220

8,6

35
2,5

3,5

227,50

8,9

36
3

4

235

9,2

37
4

5

242,5

9,5

38
5

6

250

9,8

39
6

7

257,50

10,1

40
6,5

7,5

265

10,4

41
7

8

272,50

10,7

42
8

9

280

11

43
9

10

287,50

11,3

44
10

11

295

11,6

45
10,5

11,5

302,50

11,9

46
11

12

310

12,2

47
12

13

317,50

12,5

48
13

14

325

12,8

49
14

15

332,50

13,1

50
14,5

15,5

340

13,4

51
15

16

347,50

13,7

See anti-slip results
ANTI-SLIP RESULTS
Anti-slip performance testing
Ceramic tile floor with NaLS

Forward Heel
(heel slip 7°)

≥ 0.31
≥ 0.40

Backward heel 
(heel slip 7°)

≥ 0.36
≥ 0.41
Ceramic tile floor with glycerin

Forward Heel
(heel slip 7°)

≥ 0.19
≥ 0.28

Backward heel 
(heel slip 7°)

≥ 0.22
≥ 0.28
Recommended areas of use
Automotive Components
Cold Environments
Construction and Building Sites
Farming and Agriculture
Hydrocarbons and Chemicals
Logistics and Light Industry
Metal and Wood Carpentry

Certifications applied
Heel Energy Absorption
Heel Energy Absorption
Certifications
Heel Energy Absorption

Footwear with energy absorption in the heel to reduce impact while walking. Enhances comfort and protects joints in demanding work environments.

ASTM F2413-24
ASTM F2413-24
Certifications
ASTM F2413-24
ASTM F2413-+E18:E6924 specifies the safety, performance, and protective requirements that safety footwear must meet according to U.S. standards.
Antistatic Footwear
Antistatic Footwear
Certifications
Antistatic Footwear
Antistatic footwear designed to dissipate electrostatic charges, protecting the operator and sensitive devices. Ideal for industrial environments and electronic labs. Electrical resistance range from 0.1 MΩ to 1000 MΩ.
Water-Repellent Footwear
Water-Repellent Footwear
Certifications
Water-Repellent Footwear
Water-repellent footwear designed to resist water penetration, keeping feet dry even in humid or rainy environments.
DGUV 112-191
DGUV 112-191
Certifications
DGUV 112-191
DGUV 112-191 is a German regulation defining requirements for using orthopedic insoles in safety footwear, ensuring that modifications do not compromise protection or performance.
Water Penetration and Absorption (WPA)
Water Penetration and Absorption (WPA)
Certifications
Water Penetration and Absorption (WPA)
The upper material is tested to resist water penetration, keeping feet dry even in wet or rainy environments.
PS Puncture Resistance with Non-Metallic Insert (nail Ø 3.0mm)
PS Puncture Resistance with Non-Metallic Insert (nail Ø 3.0mm)
Certifications
PS Puncture Resistance with Non-Metallic Insert (nail Ø 3.0mm)
Anti-perforation plate inserted in the sole to protect the foot from sharp objects and punctures, ensuring safety in hazardous work environments. PS puncture resistance with non-metallic insert (nail Ø 3.0mm)
Hydrocarbon Resistance
Hydrocarbon Resistance
Certifications
Hydrocarbon Resistance
Footwear resistant to hydrocarbons, designed to maintain the properties of the sole when in contact with oils and fuels. Ideal for industrial environments and workshops.
Toe Cap Abrasion Resistance
Toe Cap Abrasion Resistance
Certifications
Toe Cap Abrasion Resistance
The overcap is made of highly abrasion-resistant materials, designed and certified to protect the front part of the shoe from wear caused by frequent rubbing and contact with hard surfaces, extending the shoe's lifespan.
Slip Resistance (mandatory ceramic-Nals test)
Slip Resistance (mandatory ceramic-Nals test)
Certifications
Slip Resistance (mandatory ceramic-Nals test)
According to EN ISO 20345:2022, slip resistance is a mandatory requirement and is tested on a ceramic surface contaminated with sodium lauryl sulfate (NaLS) solution. This test, stricter than previous versions, simulates real slipping conditions and ensures that all certified safety footwear provides a minimum level of grip. The SRA, SRB, and SRC classifications have been removed in the new regulation, making the NaLS ceramic test the standard.
Slip Resistant Sole
Slip Resistant Sole
Certifications
Slip Resistant Sole
Slip-resistant sole with special compound and tread pattern designed to ensure maximum grip on wet or slippery surfaces. Improves safety during work.
Technical materials
High Visibility
High Visibility
Technical materials
High Visibility
High-visibility footwear with reflective inserts for greater safety in low-light conditions. Ideal for night work or high-risk environments.
Anti-Vibration
Anti-Vibration
Technical materials
Anti-Vibration
Innovative "anti-vibration" sole concept: a set of technologies that reduce vibrations generated by machines and moving vehicles, minimizing physical stress and fatigue accumulated throughout the day.
Cold Insulating Outsole
Cold Insulating Outsole
Technical materials
Cold Insulating Outsole
Cold-insulating outsole designed to keep feet warm, effectively protecting from low temperatures in cold or outdoor work environments.
Mondo Point 11
Mondo Point 11
Technical materials
Mondo Point 11
Mondo Point is an international standard indicating the type of fit of a particular shoe. In terms of fit, Mondo Point 11 indicates a wide, roomy, and comfortable shoe for the foot.
No metal
No metal
Technical materials
No metal

High-resistance TEXTILE anti-perforation midsole. Protects the foot from penetration by dangerous and sharp objects. At the same time, it ensures maximum flexibility and lightness for the foot.
COMPOSITE toe cap resistant to impacts up to 200 Joules, lightweight and metal-free, ideal for safely protecting the toes without adding weight to the footwear.
Unlike other materials, composite offers several advantages: thermal insulation (does not transmit heat), non-magnetic (not detected by metal detectors), and memory (in case of compression, it returns to its original shape, leaving toes free).

Slip Resistance (optional glycerin test)
Slip Resistance (optional glycerin test)
Technical materials
Slip Resistance (optional glycerin test)
The slip-resistant sole features a special compound and tread pattern designed to maximize grip on wet or slippery surfaces, improving safety on the job.
Three to be™ - Triple Density Injection
Three to be™ - Triple Density Injection
Technical materials
Three to be™ - Triple Density Injection

Three to Be® - Tripla Densità Iniettata technology represents one of the most advanced results of our R&D efforts. Patented by Giasco, it integrates three entirely polyurethane-injected sole layers to optimize safety shoe performance in terms of comfort, stability, and slip resistance.

Cold Insulating Upper
Cold Insulating Upper
Technical materials
Cold Insulating Upper

Wintherm® technology combines two systems to provide cold protection without compromising comfort. The felt layer traps air inside the shoe, creating a natural insulating barrier. Together with an aluminum layer that reflects body heat inward, it maintains a stable temperature and reduces thermal loss even under extreme working conditions.

Downloadable documents
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