[Avodah] Tznius for Men

[M Cohen]

RSM writes .. I'm fairly sure that the Avot, Moshe Rabbenu and Hazal all
wore sandals without socks, 
and I see no reason why a dress code developed in a colder climate should be
more appropriate.

I also am not happy that chareidi dress code seems inappropriate at times
for colder climates.

However, I see no evidence at all for your claim that 'the Avot, Moshe
Rabbenu and Hazal all wore sandals without socks'

What are your proofs?

mc