battery cable hy- flex

Hi everyone, I recall seeing an episode on one of the car shows that had the Red Battery cable mounted in the trunk but the wire they used was a super hy-flex, it basically laid flat and just fell into the contours of the floor pan. does anyone know who makes and where to buy.

the wire i have now is on the older side and i am going to replace it just looking for something better and more flexible.

thank you

Google hi flex battery cable

Welding cable is also pretty flexible.

Another vote for welding cable. Super resilient, super flexible- and remains that way regardless of enviroment. Its also readily available at most bulk electrical contractor suppliers

I have a lot of new welding cable depending on what size you need. Also have the lugs for some sizes. PM me your needs if you'd like