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.

WIBO Adapter for Standing-up Aid for Wibo beds
The WIBO Adapter allows a loop-style stand-up aid to be securely attached to compatible Sentida SC bed. It provides added stability during bed transfers and promotes safe, independent movement for users while reducing strain for carers.
- Necessary for standing up aid BE-8024