Best seat back options for sit inside touring kayak?

Looking to change up my Tempest’s seat back and trying to find some ideas to the best seat back options. Mine’s ok but not the best. It’s an early 2000’s model before the Air Pro or Phase 3

Immersion Research Loungeband

Stellar Clamshell Low if the OEM seat pad is shot too:

What are you hoping to accomplish with a different backband?

better back support, something more comfortable. my current one is just a small band with basically a strap around it. it moves around a good bit even when I really snug it down. and it’s narrow, feels like i just have a tie-down strap across my lower back

Do you need more support than it provides or is it uncomfortable. In my Tempest I keep the band very loose and it doesn’t really support my back at all. Having it loose works for me as it allows torso rotation and I don’t lean back looking for support. All of my boats have no back support and I feel that it helps keep me upright in my posture. I’m far from being a physical specimen, 75 years old, etc. For me getting rid of back support improved my paddling performance as well as my comfort.

Just a thought.