Calamus EH represents the next chapter in Dr. Martens' non-metallic footwear. The pinnacle of the DM's Lite range, Calamus provides great protection without the weight of traditional, steel-toe boots. Utilising a unique, lightweight, 3-part TPU shell moulding - injected directly on to breathable ballistic mesh synthetic upper. It features a composite material toe-cap that meets ASTM requirements, antimicrobial treated, breathable linings and a removable smart-foam moulded footbed enhance the internal comfort to keep you dry and comfortable. The highly flexible, cushioning EVA midsole provides great levels of comfort while the high traction, engineered, rubber compound outsole provides exceptional heat and slip resistance to keep you safe. A padded collar and tongue add to the internal comfort and an external rubber toe bumper ensures additional durability and work-site protection. Details: Safety toe cap offers protection from a minimum 200J impact and 15kN compression force, slip resistant sole reduces the risk of slips and falls on hazardous surfaces, electrical hazard will help protect the wearer against accidental contact with electrical charge by offering additional insulation from the ground, heat resistant outsole offers heat resistance up to 300 Celsius (or 572 Fahrenheit) for 60 seconds, non-metallic construction that is electronically non-conductive, breathable materials used allow the passage of air and moisture, which enable the wearers feet to breathe, ASTM F2413-11 MI/75 C/75 EH. Material: Mesh, Rubber.