Classic 6" Station Boot with pull loop design.. Features:100% full-grain leather. Oil/Acid/Water slip resistant & shock absorbent TPU (Thermoplastic Polyurethane) soles. Polyurethane mid-sole and EVA removable insole combine to provide maximum comfort.. LENZI puncture proof foot-bed.. Metal Detector Safe Composite Toe meets and exceeds ASTM F2413-05.. Slip Resistant - MARK II Machine tested slip resistant on oil, acid & water.. Anatomic Support System - Blue Tongue's unique Anatomic Sole cradles the foot to reduce arch sagging and prevents foot strain, fatigue and related leg and back pain.. Electrical Hazard Safe - Our boot meets and exceeds OSHA & ASTM F2413-05 standards for Electrical Hazards.. Impact/Compression - Composite Safety Cap meets and exceeds OSHA & ASTM F2413-05 standards for Impact & Compression.. Commonly used by: Airport, Security, Power Plant, Police, Fire, EMT/EMS, Auto Tech..