2 Chainz -- My Look Really Socks!

Though it may not have been brass knuckles, 2 Chainz was once again caught wearing a deadly fashion accessory ... socks with sandals.

While leaving a NYC hotel on Wednesday, the 35-year-old "I'm Different" rapper -- real name Tauheed Epps -- kept it old school by rockin' geriatric grand daddy foot gear in public.