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.

Configura Comfort Right Dropdown Armrest in Black Vinyl, Med/Large
The Configura Comfort drop-down armrest (Med/Large) makes side transfers to a wheelchair, commode, or bed easier. It can be fitted on either side of the chair and added to any existing Configura Comfort chair. Made from Black Vinyl.
The Configura Dropdown Armrests facilitate seamless side transfers onto a wheelchair, commode, bed etc.
The drop-down armrest can be easily fitted on either the left- or right-hand side. They can be retrofitted fitted to any of the existing Configura Comfort chairs and come in Duratek fabric or vinyl.
When mounting the Configura drop-down armrest for promoting side transfers, we recommend that you set the chair rise angle to 2 degrees, so you can get the chair to the same height of the wheelchair, commode, bed etc. then lower the armrest and commence with the seamless side transfer.
Size: Medium & Large
Style: Black Vinyl fabric
Side: Right