My lovely Grip Karakal Nano 60 is out of stock everywhere, seems like Karakal stopped producing it. Someone knows a similar grip? It should be really really hard, to have a direct feeling and tacky as much as possible. Thickness i dont care
Adidas Kalkül A5 is a hard overgrip that preserves the shape of the handle really well. It's just slightly tacky though. Have a look at the Adidas grips thread if you're interested. I don't know Karakal nano 60, so I cannot compare it. I hope it helps anyway.