New Balance Calibre offers everything you expect from your work boot. Comfort issupplied through the NB comfort insert and durability via the rubber outsole. With apremium nubuck leather upper, Ndure abrasion resistant collar and Toe Protect, yourfeet will feel supported all day long. Debris Free construction ensures additionalprotection from the elements with the added benefit of a YKK zip per which will provideeasy access moving across site. New Balance Calibre will be your ultimate worksitecompanion. COMFORT WHILE YOU WORKFeatures Anti-perforation midsole Slip resistant outsole Water resistant leather upper Composite toe Heel counter support Airport friendly YKK zipper Heel and tongue pull tab Nb PU comfort insert Size: 7-12, 13, 14 Width 2E Some other great features included - AT Tread - A dual-use outsole tread combining both trail and running lug designs for on and off road.Toe Protect - Reinforced toe tip designed to help protect the toesNDure - NDure is an NB proprietary PU that gives added durability and enduranceDebris Free Construction - Advanced upper construction designed to keep debris from entering the shoe.Heat Resistance - The outsole is heat resistant to very high temperatures (up to at least 300C for 60 seconds)STANDARDSEN ISO 20345:2022 Class I S3L FO HRO SR SCAS 2210.3: 2019 Class I S3 HRO SRC New Balance Calibre Zip Side Safety Boot (MIDCLBRE)-