The Chofetz Chaim in Geder Olam says no. Nothing may be showing.
It’s printed together with a biography written by his son (his son wrote it since bogus biographies were published when the CC passed on). He quotes his father (the Chofetz Chaim) as telling him that anything he wrote or demanded is halocha. He never ever sought to impose chumras or middas chasidus upon others.
I think the CC does permit boby socks (when a proper skirt is worn)