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Unbreakable U136 Desert Onyx Composite Black Leather Safety Boot
Unbreakable U136 Desert Onyx Composite Black Leather Safety Boot
Unbreakable U136 Desert Onyx Composite Black Leather Safety Boot
Unbreakable U136 Desert Onyx Composite Black Leather Safety Boot

Unbreakable U136 Desert Onyx Composite Black Leather Safety Boot

SKU : UNBU136B-06

Regular price £53.95 Save £-53.95


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Delivery time

All Sievi Safety Footwear styles are despatched direct from Sievi's Factory in Finland and take around 10 - 14 working days to arrive. Call us on 0121 555 8446 if you have any questions.

Unbreakable U136 Desert Onyx Composite Black Leather Safety Boot

£53.95

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Product Description

The Unbreakable U136 Desert Onyx Safety Boot combines sleek black leather style with next-generation protection. Rated S3L under EN ISO 20345:2022, this waterproof, oil-resistant work boot is engineered for comfort and built to last in the toughest job environments.

A composite toe cap and flexi-composite midsole deliver lightweight, non-metallic safety without sacrificing durability. With energy-absorbing heels, anti-static properties, and a tough scuff cap, these boots offer reliable performance from the ground up.

Whether you're on construction sites, in logistics, or handling tough industrial tasks, the U136 Desert Onyx boot keeps your feet protected and comfortable all day long.


Key Features

  • EN ISO 20345:2022 S3L SR FO safety rating

  • Black leather upper

  • Composite toe cap

  • Flexi-composite midsole

  • Oil and fuel resistant

  • 200°C heat-resistant outsole

  • Anti-static properties

  • Energy-absorbing heel

  • Ultra comfort PU insole

  • Scuff cap and kickplate for durability

  • UNBREAKABLE easy-clean sole

  • Tough side protection and ankle support

Shipping & Returns

Royal Mail Tracked 24 or DPD

Orders over £200 - Delivered Free

Orders under £200 - Delivery £4.99

Returns Policy

Easy, Hassle Free Returns

30 Days from despatch date

To be eligible for a return, your item must be in the same condition that you received it, unworn & unused, with tags, and in its original packaging. See our Refund Policy for full details.

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