A world first in safety boots, Quantum is light years ahead in function and design. Engineered with HYBRID safety, each step fights fatigue and maximizes energy rebound, whether on the worksite, the warehouse or anywhere in between. We use Global Recycled Standard (GRS) endorsed recycled TPU materials. When you shop from this range, you're helping us work towards a more sustainable future. Â Kulkote® temperature regulating technology keeps the foot cool and expels heat D30® Construction provides world class shock absorbing impact lateral and medial protection Cordura® collar gives support and strength while still being breathable NatureTex® Linings are made from ocean plastics and ghost netting Water resistant 3D Nubuck upper Recycled Popcorn PU Footbed Compression molded EVA midsole provides energy rebound and fights fatigue Quick release zip fastener ARZ+® heel cushioning + Pad Technology TPU Toe and Heel Bumper Neoprene Padded Achilles and Heel Support Lightweight, 745 grams Ideal for heavy & light industrial, warehousing, logistics and transport Certified to AS 2210.3:2019 King Gee Quantum Boot - Black