On Hackaday, Shenzhen demonstrates some proof-of-concept "taser-proof clothing" created by adding carbon fiber to the clothes' lining. The carbon fiber textile can be procured in a variety of forms, including upholstery fabric (58" wide, $19.50/yard) and
peel-and-stick 50cm tape rolls (this is vinyl, not carbon fiber). Shenzhen claims this will work even if the taser's prongs get to the wearer's body: "Electric current flows through the carbon tape and not through the human body. Always. Even if the taser's needle pierced the skin."