My husband has tried various other brands of socks ,none of which
remotely resembled the L/XL I chose for him.
He finds Posey socks comfortable and true to advertised sizing.
Spex Comfi Head Support
This is available in Standard or Extended versions.
Pad Height: 270mm
Pad Height: 150mm
Internal pad width: 130mm
Internal pad depth: 75mm
Extendend
Pad Height: 270mm
Pad Height: 165mm
Internal pad width: 170mm
Internal pad depth: 160mm