google said:A hybrid material - a mixture between hard plastic and soft silicone. A very dense and smooth rubber, made to slide in and out of the pocket, without attracting lint. The primary material used to manufacture cellhelmet cases.

Though I will probably order something like the link above later...

That one seems nice since it’s all one piece, but there are no reviews and the photos look like concept pictures. Wonder what the actual product looks like.What do you think about this https://www.amazon.co.uk/dp/B06XHFHKTN/ref=cm_sw_r_cp_awdb_t1_4kFmBbRV84FEM
https://www.amazon.com/Skull-Co-GripCase-Set-Comfortable/dp/B078WHH1KRSo dont really prefer hard plastic but is there a tpu case available which also covers the joycons?