You can find all the components you need at Escapa.

Cube RFR CMPT Foam Grips are suitable for MTB use, feature vibration-damping material, a comfortable and non-slip surface, and are extremely lightweight

Features:

Suitable for MTB,
vibration-absorbing material,
Very comfortable surface with good grip.
Ultra-lightweight, size (DxL): 27 x 126 mm,
Material: EVA foam,