FXD WB-1WP nitrolite™ work boots are waterproof, high performance work boots featuring fxd’s nitrolite™ midsole technology for all day comfort. The WB-1WP is Australia and new Zealand standard compliant and the bonding and composite toe have been tested and certified by benchmark product certification. FXD WB-1WP waterproof nitrolite™ work boots feature… fully waterproof hbr® membrane, internal sealed seams and waterproofed stitching. FXD nitrolite™ phylon midsole provides all day comfort by limiting foot and leg fatigue. Sra rated slip/oil/heat resistant rubber sole rated to 300 degrees Celsius and 572 Fahrenheit. Airport friendly composite safety toe. Bump cap has an extra 1.5mm of TPU added for increased durability. Angled heavy duty ykk™ 10-gauge coil zip for easy entry and safe emergency removal. Ballistic high abrasion resistant stitching. High traction ladder grippers built into the sole. Coolmax® lining is moisture wicking and accelerates drying for comfort and breathability. Padded Achilles support insert. Power strap locks down the heel for increased comfort and reduced foot fatigue. Silicone reinforced padding for impact protection. Poron® heel insert provides additional cushioning and helps prevent heel strike injury