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S3: S3 Safety shoes e.s. Kastra II low + anthracite/high-vis yellow
S3: S3 Safety shoes e.s. Kastra II low + anthracite/high-vis yellow 2
#93789

S3 Safety shoes e.s. Kastra II low

£ 128.28
plus shipping
inc VAT
from 3 pair:
£ 122.28
from 10 pair:
£ 116.28
Delivery time approx. 5-10 working days
colour
anthracite / high-vis yellow
anthracite / high-vis yellow
Size
39
pair
S3 Safety shoes e.s. Kastra II low
anthracite / high-vis yellow
anthracite / high-vis yellow
39
£ 128.28
inc VAT
plus shipping
pair

PRODUCT INFORMATION
S3: S3 Safety shoes e.s. Kastra II low + anthracite/high-vis yellow
These shoes are certified according to EN ISO 20345:2011 S3, although their properties are similar to those of safety shoes of the new safety class S7. Due to the adaptation of the EN ISO 20345:2022, new protection classes are created to further subdivide the characteristics of safety shoes in the future. You can find further information in our protection class overview.
SAFETY WHEREVER YOU GO
Be it deep puddles, nails on the floor, falling objects or slippery terrain: Enjoy the safe footing provided by the S3 e.s. Kastra safety shoes and the protection given by the penetration-proof steel sole. In combination with the weatherproof dryplexx® membrane and the durable steel cap, the Kastra boots offer your feet an all-round carefree package. This also includes the practical fastener which makes putting these boots on and taking them off again very fast.
Description
Details
Extras
  • EN ISO 20345:2011 S3 with steel toe cap and steel midsole - the properties are similar to those of the new EN ISO 20345:2022 S7
  • BOA® Fit System for a micro-adjustable precision fit
  • Waterproof, windproof and breathable due to the dryplexx® membrane
  • Upper material made of durable CORDURA® microfibre combination
  • Breathable mesh inner lining
  • Free of leather
  • Dirt cannot penetrate thanks to the closed tongue design
  • Removable, full-surface anatomically shaped insole
  • biocage® midsole for excellent flexibility, stability and absorption
  • Flexible, raised sole grid offers added protection against wear and impacts
  • Abrasion-resistant rubber/PUR sole conforms to SRC with a good grip and a self-cleaning profile, anti-static, fuel-resistant and heat-resistant up to approx.  200 °C
Weight: approx.770grams in size44

Breathable shoes only work with functional socks. Cotton socks store moisture. In contrast, functional socks remove the moisture from the feet to the outside. Then the breathable shoe membrane comes into play and transports the moisture to the outside of the shoe. Therefore the principle behind breathable shoes only works if breathable socks are worn. Only a combination of functional socks and breathable shoes effectively removes sweat sending it to the outside of the shoe. This is the principle of breathability.
All-weather protective layer
Click on the "Data Sheet" button for more information and technical details.

Additional information

Features
Twist it!
Tying shoe laces is so old school. Time to turn things around!
Just a few clicks and you can get going!
And it is just as easy to undo: Simple pull the rotary fastener and the entire system opens. It couldn't be more easy!

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S3 Safety shoes e.s. Kastra II low
S3 Safety shoes e.s. Kastra II...
S3 Safety shoes e.s. Kastra II low

features:
26
from £ 96.90 (ex VAT)
from £ 116.28 (inc VAT)
from 10 pair
Colour icon, black
Colour icon, chestnut/hazelnut
Colour icon, black/fiery red/gentianblue
Colour icon, titanium/gentianblue
Colour icon, black/platinum
Colour icon, green/seagreen
Colour icon, red/high-vis yellow
Colour icon, anthracite/high-vis yellow
Colour icon, dijon
Colour icon, green/high-vis yellow
Colour icon, royal/high-vis yellow
EU 38 - 49
UK 5 - 13.5
EN ISO 20345 (safety shoes)
Basic requirements: non-slip in compliance with SRA, SRB or SRC, SR and toe protection.
Rotary system
Sturdy steel straps, can be locked into position via a rotary system. Can be put on and taken off quickly and easily, perfect hold.
Normal
10 cm wide for feet of normal width.
All-weather protective layer
160-200 °C
SRC
Absolute non-slip tested on ceramic tiles, cleaning agents, steel plates & glycerine according to EN ISO 20345:2011 (safety shoes) / EN ISO 20347:2011 (work shoes).
Textile
Breathable inner material, soft and pleasant, highly absorbent for hygienic comfort.
Steel
Durable steel insert for massive protection against injuries by nails & other sharp objects
Normal shoes (low)
Work and safety shoes, ankle-high.
PU / PUR
Sole made of polyurethane: low weight, good absorption properties, resistant to oil and petrol
Rubber
Highly wear-resistant, high heat compatibility, resistant to oil and petrol
closed tongue design
The side attachment of the strap on the shoes prevents dirt and dust from penetrating.
Membrane (windproof, water resistant, breathable)
Work shoes with dryplexx® features ensure permanent weather protection and climate comfort.
Scuff cap / Tip protection
Material protection in the toe area of the shoes - improves wear resistance. Practical when working on the knees. Solid scuff caps draw the sole material well over the edge of the sole. Textile material TPU or rubber are also used to protect the tips.
leather-free
Work and safety shoes made of purely synthetic materials without leather.
Steel
Unbreakable metal, excellent toe protection for absolute safety.
Textile
Hard-wearing, flexible and breathable outer material.
Microfiber
Hard-wearing and easy-care outer material.
Over 500 g
watertight, wind-proof, breathable (membrane)
Shoes with a functional membrane that offer permanent protection against the wet and reliable climate comfort.
Anti-static
Requirement from class S1, protection against electrical charging, contact resistance from 100 kiloohms.
FO Fuel-resistant
Sole is resistant to oil and petrol
S3
Pursuant to EN ISO 20345 – toe protection, closed heel area, anti-slip, penetration-proof & profiled sole, anti-static, fuel-resistant, partially watertight (min. 60 Min. no water penetration). Similar to S7 shoes with an additional weatherproof membrane.
dryplexx waterproof breathable

dryplexx® waterproof breathable

The new generation of WEATHERPROOF
Permanently waterproof, highly breathable, perfect climate comfort. Based on the "sock principle", the dryplexx® functional membrane is completely worked into the shoe, providing professional, reliable and strong weather protection - guaranteed!

  • Permanently waterproof
  • Highly breathable
  • Perfect climate comfort

Outer fabric Weather protection
Mid layer Removal of the moisture
Membrane waterproof, windproof, breathable
Functional layer Transfer of the moisture
Inner lining Moisture absorption

BOA® Fit System

BOA® Fit System for a fast, micro-adjustable precision fit, optimal durability and best stability.

1 - PRESS – to close
2 - TURN – at affix
3 - PULL – to open

  • no laces, no annoying straps
  • easy to put on and take off
  • precise fine adjustment for a perfect fit
  • perfect hold with no pressure points
  • flexible & dynamic for easy adjustment to the movement of your feet
  • practical one-hand operation
  • enormously durable thanks to stainless steel straps coated in nylon
biocage STABILITY & PROTECTION

biocage® STABILITY & PROTECTION

All-round protection for your feet and material!
biocage
® draws the wear-resistant PUR layer high above the edge of the sole and thereby offers reliable protection against impact and wear. At the same time, the flexible sole grid assists the rolling motion thanks to the side perforations; absorbed energy is discharged more efficiently and optimum absorption values are achieved. jackets. biocage® includes the outsole and shoes as a complete cast, and therefore highly sturdy, unit, thereby achieving a permanent grip along the edge and side stability.

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Price

from £ 106.90 (ex VAT)
from £ 128.28 (inc VAT)
from 10 pair
from £ 82.90 (ex VAT)
from £ 99.48 (inc VAT)
from 10 pair
from £ 89.90 (ex VAT)
from £ 107.88 (inc VAT)
from 20 pair

Available colours

Colour icon, black
Colour icon, chestnut/hazelnut
Colour icon, black/fiery red/gentianblue
Colour icon, titanium/gentianblue
Colour icon, black/platinum
Colour icon, green/seagreen
Colour icon, red/high-vis yellow
Colour icon, anthracite/high-vis yellow
Colour icon, dijon
Colour icon, green/high-vis yellow
Colour icon, royal/high-vis yellow
Colour icon, black
Colour icon, bark
Colour icon, black

Available sizes

EU 38 - 50
UK 5 - 14.5
EU 40 - 47
UK 6.5 - 12
EU 38 - 50
UK 5 - 14.5

EN standard

EN ISO 20345 (safety shoes)
Basic requirements: non-slip in compliance with SRA, SRB or SRC, SR and toe protection.
EN ISO 20345 (safety shoes)
Basic requirements: non-slip in compliance with SRA, SRB or SRC, SR and toe protection.
EN ISO 20345 (safety shoes)
Basic requirements: non-slip in compliance with SRA, SRB or SRC, SR and toe protection.

Fastener system

Rotary system
Sturdy steel straps, can be locked into position via a rotary system. Can be put on and taken off quickly and easily, perfect hold.
Laces
The straps allow perfect adjustment to the foot width.
Laces
The straps allow perfect adjustment to the foot width.

Foot width

Normal
10 cm wide for feet of normal width.
Normal
10 cm wide for feet of normal width.
Normal
10 cm wide for feet of normal width.

Functional clothing

All-weather protective layer
All-weather protective layer
All-weather protective layer

Heat­resistant up to

160-200 °C
160-200 °C
160-200 °C

Highest slip resistance

SRC
Absolute non-slip tested on ceramic tiles, cleaning agents, steel plates & glycerine according to EN ISO 20345:2011 (safety shoes) / EN ISO 20347:2011 (work shoes).
SRC
Absolute non-slip tested on ceramic tiles, cleaning agents, steel plates & glycerine according to EN ISO 20345:2011 (safety shoes) / EN ISO 20347:2011 (work shoes).
SRC
Absolute non-slip tested on ceramic tiles, cleaning agents, steel plates & glycerine according to EN ISO 20345:2011 (safety shoes) / EN ISO 20347:2011 (work shoes).

Inner material

Textile
Breathable inner material, soft and pleasant, highly absorbent for hygienic comfort.
Leather
Excellent comfort properties: temperature regulating, breathable, elastic, keeps its shape.
Textile
Breathable inner material, soft and pleasant, highly absorbent for hygienic comfort.

Penetration protection

Steel
Durable steel insert for massive protection against injuries by nails & other sharp objects
Steel
Durable steel insert for massive protection against injuries by nails & other sharp objects
Steel
Durable steel insert for massive protection against injuries by nails & other sharp objects

Shape

High (mid)
Work and safety shoes that surround the ankle, for a sturdy stance.
Normal shoes (low)
Work and safety shoes, ankle-high.
High (mid)
Work and safety shoes that surround the ankle, for a sturdy stance.

Sole material

PU / PUR
Sole made of polyurethane: low weight, good absorption properties, resistant to oil and petrol
Rubber
Highly wear-resistant, high heat compatibility, resistant to oil and petrol
PU / PUR
Sole made of polyurethane: low weight, good absorption properties, resistant to oil and petrol
Rubber
Highly wear-resistant, high heat compatibility, resistant to oil and petrol
PU / PUR
Sole made of polyurethane: low weight, good absorption properties, resistant to oil and petrol
Rubber
Highly wear-resistant, high heat compatibility, resistant to oil and petrol

Special features

closed tongue design
The side attachment of the strap on the shoes prevents dirt and dust from penetrating.
Membrane (windproof, water resistant, breathable)
Work shoes with dryplexx® features ensure permanent weather protection and climate comfort.
Scuff cap / Tip protection
Material protection in the toe area of the shoes - improves wear resistance. Practical when working on the knees. Solid scuff caps draw the sole material well over the edge of the sole. Textile material TPU or rubber are also used to protect the tips.
leather-free
Work and safety shoes made of purely synthetic materials without leather.
Membrane (windproof, water resistant, breathable)
Work shoes with dryplexx® features ensure permanent weather protection and climate comfort.
Scuff cap / Tip protection
Material protection in the toe area of the shoes - improves wear resistance. Practical when working on the knees. Solid scuff caps draw the sole material well over the edge of the sole. Textile material TPU or rubber are also used to protect the tips.
closed tongue design
The side attachment of the strap on the shoes prevents dirt and dust from penetrating.
Membrane (windproof, water resistant, breathable)
Work shoes with dryplexx® features ensure permanent weather protection and climate comfort.
Scuff cap / Tip protection
Material protection in the toe area of the shoes - improves wear resistance. Practical when working on the knees. Solid scuff caps draw the sole material well over the edge of the sole. Textile material TPU or rubber are also used to protect the tips.

Toe cap

Steel
Unbreakable metal, excellent toe protection for absolute safety.
Steel
Unbreakable metal, excellent toe protection for absolute safety.
Steel
Unbreakable metal, excellent toe protection for absolute safety.

Upper material

Textile
Hard-wearing, flexible and breathable outer material.
Microfiber
Hard-wearing and easy-care outer material.
Leather
Outer material made of Nubuck leather, smooth leather or full calf leather for high standards.
Leather
Outer material made of Nubuck leather, smooth leather or full calf leather for high standards.

Weight of size 42

Over 500 g
Over 500 g
Over 500 g

Wet/weatherproof

watertight, wind-proof, breathable (membrane)
Shoes with a functional membrane that offer permanent protection against the wet and reliable climate comfort.
watertight, wind-proof, breathable (membrane)
Shoes with a functional membrane that offer permanent protection against the wet and reliable climate comfort.
watertight, wind-proof, breathable (membrane)
Shoes with a functional membrane that offer permanent protection against the wet and reliable climate comfort.

more sole requirements

Anti-static
Requirement from class S1, protection against electrical charging, contact resistance from 100 kiloohms.
FO Fuel-resistant
Sole is resistant to oil and petrol
Anti-static
Requirement from class S1, protection against electrical charging, contact resistance from 100 kiloohms.
FO Fuel-resistant
Sole is resistant to oil and petrol
Anti-static
Requirement from class S1, protection against electrical charging, contact resistance from 100 kiloohms.
FO Fuel-resistant
Sole is resistant to oil and petrol

protection classes

S3
Pursuant to EN ISO 20345 – toe protection, closed heel area, anti-slip, penetration-proof & profiled sole, anti-static, fuel-resistant, partially watertight (min. 60 Min. no water penetration). Similar to S7 shoes with an additional weatherproof membrane.
S3
Pursuant to EN ISO 20345 – toe protection, closed heel area, anti-slip, penetration-proof & profiled sole, anti-static, fuel-resistant, partially watertight (min. 60 Min. no water penetration). Similar to S7 shoes with an additional weatherproof membrane.
S3
Pursuant to EN ISO 20345 – toe protection, closed heel area, anti-slip, penetration-proof & profiled sole, anti-static, fuel-resistant, partially watertight (min. 60 Min. no water penetration). Similar to S7 shoes with an additional weatherproof membrane.

Extras

dryplexx waterproof breathable

dryplexx® waterproof breathable

The new generation of WEATHERPROOF
Permanently waterproof, highly breathable, perfect climate comfort. Based on the "sock principle", the dryplexx® functional membrane is completely worked into the shoe, providing professional, reliable and strong weather protection - guaranteed!

  • Permanently waterproof
  • Highly breathable
  • Perfect climate comfort

Outer fabric Weather protection
Mid layer Removal of the moisture
Membrane waterproof, windproof, breathable
Functional layer Transfer of the moisture
Inner lining Moisture absorption

BOA® Fit System

BOA® Fit System for a fast, micro-adjustable precision fit, optimal durability and best stability.

1 - PRESS – to close
2 - TURN – at affix
3 - PULL – to open

  • no laces, no annoying straps
  • easy to put on and take off
  • precise fine adjustment for a perfect fit
  • perfect hold with no pressure points
  • flexible & dynamic for easy adjustment to the movement of your feet
  • practical one-hand operation
  • enormously durable thanks to stainless steel straps coated in nylon
biocage STABILITY & PROTECTION

biocage® STABILITY & PROTECTION

All-round protection for your feet and material!
biocage
® draws the wear-resistant PUR layer high above the edge of the sole and thereby offers reliable protection against impact and wear. At the same time, the flexible sole grid assists the rolling motion thanks to the side perforations; absorbed energy is discharged more efficiently and optimum absorption values are achieved. jackets. biocage® includes the outsole and shoes as a complete cast, and therefore highly sturdy, unit, thereby achieving a permanent grip along the edge and side stability.

dryplexx waterproof breathable

dryplexx® waterproof breathable

The new generation of WEATHERPROOF
Permanently waterproof, highly breathable, perfect climate comfort. Based on the "sock principle", the dryplexx® functional membrane is completely worked into the shoe, providing professional, reliable and strong weather protection - guaranteed!

  • Permanently waterproof
  • Highly breathable
  • Perfect climate comfort

Outer fabric Weather protection
Mid layer Removal of the moisture
Membrane waterproof, windproof, breathable
Functional layer Transfer of the moisture
Inner lining Moisture absorption

biocage STABILITY & PROTECTION

biocage® STABILITY & PROTECTION

All-round protection for your feet and material!
biocage
® draws the wear-resistant PUR layer high above the edge of the sole and thereby offers reliable protection against impact and wear. At the same time, the flexible sole grid assists the rolling motion thanks to the side perforations; absorbed energy is discharged more efficiently and optimum absorption values are achieved. jackets. biocage® includes the outsole and shoes as a complete cast, and therefore highly sturdy, unit, thereby achieving a permanent grip along the edge and side stability.

dryplexx waterproof breathable

dryplexx® waterproof breathable

The new generation of WEATHERPROOF
Permanently waterproof, highly breathable, perfect climate comfort. Based on the "sock principle", the dryplexx® functional membrane is completely worked into the shoe, providing professional, reliable and strong weather protection - guaranteed!

  • Permanently waterproof
  • Highly breathable
  • Perfect climate comfort

Outer fabric Weather protection
Mid layer Removal of the moisture
Membrane waterproof, windproof, breathable
Functional layer Transfer of the moisture
Inner lining Moisture absorption

IN 3 STEPS TO THE PERFECT FOOTWEAR

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Size
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Colour icon blackColour icon titanium/gentianblueColour icon black/fiery red/gentianblueColour icon green/seagreenColour icon chestnut/hazelnutColour icon dijonColour icon black/platinumColour icon anthracite/high-vis yellowColour icon royal/high-vis yellowColour icon red/high-vis yellowColour icon green/high-vis yellow

Engelbert Strauss Ltd.

Phone
01252 607855
Fax
01252 607857
All prices plus shipping on orders below £ 108.00.
All prices plus VAT plus shipping on orders below £ 90.00.
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