What is the material used for manufacturing ZeFit³ strap ? October 19, 2016 21:30 Updated The ZeFit³ strap is made from silicones and thermoplastic polyurethanes. Related articles Can I wear ZeFit³ while swimming / showering ? Can I change the strap of my ZeFit³ ? How do I replace my ZeTime band? Where can I purchase new wristband for my ZeTime?