The Chore Max is the newest Muck boot to push the boundaries of footwear protection. Waterproof construction keeps feet dry, and an SRC slip-resistant outsole provides grip on slick surfaces, all while being cut and abrasion resistant. For added safety and protection, Blaze Yellow high-viz linings offer additional visibility, and a composite toe with a non-metallic plate provide metal-free performance. ANTIVIRAL PROTECTION: Independent lab testing validates viral penetration resistance for this footwear. TEST STANDARD: ASTM F1671 / F1671M - 13 100% Waterproof Composite toe impact protection Puncture resistant midsole with non-metallic plate for underfoot protection Meets ASTM F2413-18 M/I/C EH / ESR (electric shock resistant) rated outsoles Meets CSA Grade 1 standards Full rubber coverage for ultimate durability AntiViral Protection, bleach resistant and lugged traction 3D Airmesh lining for comfort and air circulation Blaze Yellow high-viz linings offer additional visibility Reflective pull-tab for easy on and off bioDEWIX™ antimicrobial footbed insert topcover with NZYM™ for odor control and moisture management SRC rated slip resistant outsole Estimated height: 41cm/ 16.1in Estimated max calf circumference: 42cm/ 16.5in Comfort Range: Sub Freezing to 65°F / 18°C Half sizes order up 100% Waterproof 3D Airmesh Lining for Comfort and Circulation ASTM F2413-18 M/I/C PR EH bioDEWIX Antimicrobial footbed Insert Topcover with NZYM for Odor Control and Moisture Management Composite Toe for Non-metallic Protection CSA Approved Grade 1 ST/PR/Mt/ESR Full Rubber Upper for Durable, Complete Protection Insulation: 5mm of Neoprene with PK Mesh Lining Non-Metallic Plate for Underfoot Protection SRC Rated Slip-Resistant Outsole