New Balance Calibre offers everything you expect from your workboot. Comfort is supplied through the NB comfort insert and durability via the rubber outsole. With a premium nubuck leather upper, Ndure abrasion resistant collar and Toe Protect, your feet will feel supported all day long. Debris Free construction ensures additional protection from the elements with the added benefit of a YKK zipper which will provide easy access moving across site. New Balance Calibre will be your ultimate worksite companion. COMFORT WHILE YOU WORK.