---
title: "Heckel MX 300 GT S3 CI HI WR HRO SRC lace-up boot | Safety footwear"
url: "https://www.uvex-safety.ie/en/products/safety-footwear/heckel-mx-300-gt-s3-ci-hi-wr-hro-src-lace-up-boot-63933/"
description: S3 CI SRC; cold insulating; leather; GORE-TEX lining; metal-free; scuff cap; anti-slip outsole, penetration-resistant midsole; water-resistant upper
image: "https://d3rbxgeqn1ye9j.cloudfront.net/shop-media/aZb3jgIzzxyYiw5FMO5vZaMX22BVwx4GYtSL_mmHvQg/cb:1756915501/bWVkaWEvMGQvODAvMzcvMTc1NjkxNTUwMS82MzkzM19tYWluLmpwZw"
date: 2024-01-30
modified: 2025-01-08
type: product
site: uvex safety
locale: en_IE
categories:
  - Safety footwear
---

# Heckel MX 300 GT S3 CI HI WR HRO SRC lace-up boot | Safety footwear

![](https://d3rbxgeqn1ye9j.cloudfront.net/shop-media/djVv-w8dpoLrxqKQ8V01GJcQ7OUMW9RNH7Uf6f9Ijiw/cb:1756915501/w:540/h:540/bWVkaWEvMGQvODAvMzcvMTc1NjkxNTUwMS82MzkzM19tYWluLmpwZw)

![](https://d3rbxgeqn1ye9j.cloudfront.net/shop-media/3C3Efh4Pf8xYEXgrjTDirPkJh_CYiiDr-oSzmsQ0Gc0/cb:1756915493/w:540/h:540/bWVkaWEvMjUvZDUvNGEvMTc1NjkxNTQ5My82MzkzM196MS5qcGc)

![](https://d3rbxgeqn1ye9j.cloudfront.net/shop-media/mhmJp6cw-3JscyKIrdNwjFAkbdFljspWJnxnRTOFxeM/cb:1756915461/w:540/h:540/bWVkaWEvMzQvM2IvMjgvMTc1NjkxNTQ2MS82MzkzM19pMS5qcGc)

![](https://d3rbxgeqn1ye9j.cloudfront.net/shop-media/RPq8xVz8RI1-9pqhxuxgmyTbc5aDDonWH7XkF3hHRbA/cb:1756915744/w:540/h:540/bWVkaWEvMDYvNTMvMjAvMTc1NjkxNTc0NC82MzkzM19hY3Rpb24uanBn)

Description### Heckel MX 300 GT – is up for the challenge

The Heckel MX 300 GT is a rugged, 100% waterproof (WR) full-grain leather outdoor boot with GORE-TEX® membrane, designed to withstand the rigours of tough environments. The GORE-TEX® membrane is both waterproof and breathable, keeping feet dry and protected from external elements and providing a comfortable internal climate. The MACOLE® X rubber sole delivers excellent levels of grip - making it ideal for those working in demanding or even extreme conditions with exposure to bad weather, rain, extreme cold and uneven terrain.

**General features**

- GORE-TEX® membrane extended comfort lining, keeps feet dry
- Water-resistant full grain leather upper, padded tongue and collar
- Closure system with metallic hooks and eyelets
- Colour: black
- Available in sizes: 37 to 48 (4 to 13)
- Weight (at size 42): 715 grams

**Safety features**

- 100% waterproof (WR) and breathable thanks to Gore-Tex membrane
- Protection class S3 in accordance with EN ISO 20345:2011 with additional markings for cold insulation (CI), excellent slip resistance (SRC)
- Cold-insulating shoe design
- HI label for heat-insulating substructure (tested in accordance with the standard at +150°C)
- HRO label for heat-resistant substructure for brief exposure up to +300°C
- PU / Rubber sole providing excellent grip. Oil, hydrocarbon and chemical-resistant – with a self-cleaning profile
- Injection moulded PU scuff cap helps protect the leather for longer product life

**Comfort features**

- Light and flexible
- Anatomically shaped hygienic insole which picks up moisture very well
- Heel shock absorber

**Applications**

- Energy
- Construction
- Forestry
- Chemical
- Transportation
- Humid working conditions

**Downloads**

[Product data sheet](https://d3rbxgeqn1ye9j.cloudfront.net/fileadmin/www.uvex-safety.co.uk/Media/datasheet/63933_PDB_EN.pdf)

Specifications

| EN ISO 20345:2011 | S3, SRC, CI, HI, HRO, WR |
|---|---|
| ESD | Unsuitable |
| Lining material | GORE-TEX® laminate |
| Marketing colour | Black |
| Sole material | Dual-density polyurethane rubber (PU/RU) |
| Outer material | Leather |
| Product family | Heckel MACSOLE® X |
| Product type | Boot |
| Segment | Electrical Works, Plumbing / Heating / Air-Conditioning, Driving Machinery / Machine Operator, Painting / Paper Hanging, Bridge / Tunnel / Elevated Highway Construction |
| Technologies | GORE-TEX® |

Heckel MX 300 GT S3 CI HI WR HRO SRC lace-up boot
=================================================

Article number: 63933

- 100% waterproof (WR) and breathable thanks to Gore-Tex membrane
- Metal-free toe-cap and penetration-resistant midsole
- PU/rubber sole resistant to contact heat up to 300°C
- Self-cleaning profile for excellent grip
- Injection moulded PU scuffcap protects leather

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