3M™ Hard Hats Series H700 is our series of lightweight hard hats with plastic sweatbands and ventilated headbands for improved comfort. They feature a short peak and a head harness that can be rotated 180° for improved visibility. They’re available with pinlock or ratchet suspension.For comfortable, tough and lightweight head protection that can withstand cold temperatures, use 3M™ Hard Hats Series H700.The ventilated headband offers improved comfort and the head harness can be rotated 180° for better visibility when working in confined spaces. They’re available with pinlock or ratchet suspension and approved for use at -30 °C (EN397:2012) and -50 °C (GOST EN397:2012).