Not a sensible option but these (below) are intriguing.
Hotglossy3kcrabonracerbikechair
Selle SMP ripoffs cheap from china ready to bust you a new one.
ordered one of these from aliexpress to try out.... £23 - worth a punt, if it suits me then I might shell out for a real one.
ordered one of these from aliexpress to try out.... £23 - worth a punt, if it suits me then I might shell out for a real one.