FXD WB-5 DURA900™ NITROLITE™ work boots are lightweight, fully synthetic, and provide superior comfort and durability. The WB-5 is A 6″ high-cut work boot and features a durable fully synthetic DURA900™ advanced nylon base upper material and our proprietary NITROLITE™ eva midsole for all-day comfort and reduced foot and leg fatigue. DURA900™ ADVANCED NYLON UPPER NITROLITE™ MOLDED PHYLON MIDSOLE PORON® HEEL INSERT PREVENTS HEEL STRIKE INJURIES AND REDUCES FOOT AND LEG FATIGUE HIGH REBOUND MOLDED, VENTILATED, ANTI-MICROBIAL POLYURETHANE FOOTBED SRA RATED OIL SLIP HEAT RESISTANT TO 300C KPU TRIPLE THICKNESS BUMP CAP COMPOSIT SAFETY TOE KPU EXO SKELETON MUD GUARD AND EYESTAY SYSTEM YKK™ HEAVY DUTY 10-GUAGE COIL ZIPPER COOLMAX™ ENGINEERED LINING WICKS MOISTURE AND ACCELERATES DRYING SILICONE EMBOSSED ANKLE GUARD PROTECTIVE MOLDED TPU ANKLE SYSTEM Colour: Black, Stone, Wheat Code: WB-4 FXD WB-5 DURA900™ NITROLITE™ Work Boot