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.

Whitmyer Specialty PLUSH
19" Dual Mount Plush, 14" Dual Mount Plush, 12" Narrow Plush, Adjust-A-Plush Standard, Adjust-A-Plush Narrow
Lateral Facial Supports:
Unilateral or Bilateral: Spot, Standard, Long, Oval, Large-C, Medium-C, Small-C, FS0-8
Anterior Support Options:
Dynamic Forehead Strap, DFS2, Strap Cap, Static Forehead strap