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.
Seat Depth: 12" - 20" (30.5 - 51 cm)
Front seat height: Seat to Floor height: 15" - 20" (38 - 51 cm)
Rear seat height: Seat to Floor height: 14" - 20" (35.5 - 51 cm)
Backrest Angle: -8° to 17°
Frame Type: 75°, 80°, 85°
Maximum User Weight: 120 kg
Total Weight: 10 kg
Crash Tested: Yes