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 Stylo 260 Head Support
Vertical adjustment in mechanism: 160mm
Vertical adjustment in stem: 145mm, 80mm for flip-back
Sideways Adjustment: 250mm
Pitch: 45° of head support pad in all directions within the ball joint. The ball joint is also on a hinge which offers an additional 180° in up and down angle.
Weight of Stylo system: 830 grams