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. 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 recycled plastic bottles Recycled Popcorn PU Footbed Compression molded EVA midsole provides energy rebound and fights fatigue Quick release zip fastner ARZ+® heel cushioning + Pad Technology TPU Toe and Heel Bumper Neoprene Padded Achilles and Heel Support Water Resistant Nubuck Leather upper Lightweight, 745 grams Ideal for heavy & light industrial, warehousing, logistics and transport Certified to AS 2210.3:2019 King Gee Quantum Hybrid Zip/Lace Composite Toe Work Boot 5"- Wheat