Originally Posted by DarkJak

For those interested, I have the Zeta III size regular and L and had the chance to sit in the Type XL at SEMA.

The regular Zetas will really only fit folks who are sub 34 waist sizes, and those at 34 will be a squeeze.

I'm around 34 now, and had a jacket and a belt on and the Type XL was very comfy, and had a bit of breathing room. Hold is fantastic, and the Cusco collab seats have a microsuedish type of fabric that feels MUCH nicer than the typical fuzzy fabric that Recaros and regular Brides have (what most race seats have). The fuzzy fabric is made of looped ends that really catch and hold on to anything. Like down from a puffer jacket for example. The fabric in the Cusco Brides are open ended and don't hold on to things as a result, making them far easier to clean.

Hold is excellent. Only thing I'd add for long trips would be a lumbar cushion for your lower back.