Same fiber type, different name. Para-aramid is the fiber. Kevlar® is one brand of it, the way Kleenex is a brand of tissue.
Ours is para-aramid from another maker, not Kevlar brand. This fiber is what gives these laces their strength and heat resistance.
Our Welder's Laces have a 16-strand para-aramid core inside a 24-strand para-aramid jacket.
Kevlar® is a registered trademark.