Mack Octane Zip Now Available In Black We've listened to what you want, so the Octane Zip Boot that you know and love is now also available in black! The combination of electricalHAZARD certification and the performance features of the ADAPT™ Range makes the Octane Zip ideal for electricians and construction workers that work on uneven surfaces and can be exposed to electric currents. ZIPclosure provides easy access and a quick exit in emergencies. Find your nearest stockist here.