Ergodyne (Tenacious Holdings, Inc.)

Ergodyne is a global leader in the design and manufacture of Tenacious Work Gear®—innovative personal protective equipment (PPE), workwear, and productivity solutions for workers across construction, utilities, manufacturing, logistics, and more. Ergodyne’s range includes winter gear, gloves, hi-vis apparel, head/eye/face protection (Skullerz®), tool tethering, knee pads, thermal wear, and ergonomic supports. Renowned for comfort, compliance, and style, Ergodyne’s products are engineered to enhance safety, prevent injuries, and help workers thrive in tough environments. Established in 1983, Ergodyne now operates as a Klein Tools Company.