Grip: Ergon, GR3 on my Brompton M 3

Tape: (Off the Shelf); Fizik, with their undertape gel pads.

Also OK 2 layers of common foam tape .

the Gel striped are more a non slip than added padding, but, It does not stick to the metal,
like regular adhesive under a paper release tape strip, does.. & tape comes off easily, to re do.