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2.0-2.2 mm full grain fire retardant with Fusion fire-retardant textile (40% Nomex, 60% Kevlar and Teflon) low-profile rip-stop weave to deliver excellent thermal protection, with superior abrasion resistance and water repellence 
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Vibram heat resistant outsole for use in extreme situations and will maintain its performance in a wide range of temperatures, tested up to 300 degrees.This outsole is certified to Electrical Insulation and provides the highest slip-resistance SRC 
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Ortholite footbed with anti-bacterial properties providing out-of-the-box comfort 
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Composite anti-penetration plate which is as strong as steel but much more lightweight, and also scanner safe 
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Composite toe which is as strong as steel but much more lightweight, and also scanner safe 
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Poron performance cushioning brings long lasting comfort and high performance shock absorption 
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YKK front zipper for easy on and off 
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Agion anti-bacterial treated lining 
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i-shield ultimate protection against liquids, dirt and blood pathogen resistant 
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Weight: 950 grams (half pair US 9) 
- Comes without zipper kit