Fully waterproof, quick drying polyester lining, hand-built rubber dielectric boot.High spec dielectric safety boot for use on and around electrical installations. Manufactured with specially formulated insulating layers offering electrical protection over the whole boot.Built on the popular Quatro last to give a generous fit whilst also locking the ankle and preventing heel slip in use.Product SpecificationKnee length Dielectric safety bootMeets safety standards EN ISO 20345(2011) SB E HRO FO, ASTM F2413 (M/I/75/C/75)Meets electrical standards EN 50321 (Class 0) (10kV), ASTM F1117 (20kV)Arc flash protection Meets ASTM F2621 and IEC 61482-1-1 Method B resulting in no ignition, dripping or melting at 40Cal/cmErgonomically designed to secure the foot and enhance stabilitySuper-flex ozone and flex resistant rubber upperRevolutionary 360 SureGrip outsole, resistant to oil, acid and heatQuatro ComfortForm steel toe capQuatro comfort system insole