FXD WB-4 Nitrolite Slip On Work BootsThe new FXD WB 4 has arrived! These high performance work boots have been tried and tested by hard working tradies to ensure your boots give you all day comfort! Updated outsole design, external abrasion panel repositioned to provide medial and lateral support Double bind elastic gusset for increased elastic durability Padded tongue and achilles entry points Silicone tab grippers for ease of entry Slip, oil and heat resistant 62 Durometer rubber