They are regular Fruit of the Loom socks — some are black some are white. The seam at the top seems to cut into his calves (not really cutting, but are tight). He isn't retaining water or anything and he is thin as a rail. What socks do you use that won't do this to him?
There are also diabetic gripper socks, which have the non-slip grippers on the bottom of the feet.
Please be aware that many doctors recommend that older folks wear white socks so any blood from cuts or punctures can be easily seen. Especially for people who have compromised feeling in their feet.
Here are a few well regarded brands:
Dr. Scholl’s Diabetes and Circulatory Socks.
Thorlos Diabetic Socks
Yomandamor Diabetic Socks (available on Amazon)
Diabetics Comfort Socks by Physicians’ Choice
MediPeds Diabetic Socks
These socks are designed for comfort and improved circulation. You can find them at stores like Walmart, Target, CVS, Walgreens or online.
I hope this helps your father and anyone else looking for a comfortable fit.
Above is a link to diabetic socks on Amazon. Please do get dad checked out by his PCP, however, since this is a new issue.
Good luck.
My husband cuts the tops off his socks because he has the same problem but he's not skinny.
You did check carefully for pitting edema I hope?
Often what happens with our failing circulation is called dependent edema. Can cause this. Good luck.