How are those japanese girls keeping their socks up?

Japanese high school girls wear outrageously oversized socks called
“loose socks.” How do they keep their socks from falling down? You
guessed it — they use “socks glue” (also called sock-tachi in
Japanese). Here’s some authentic socks glue for you, straight from
Japan — an incredible handy water-based glue that you apply to your
calf to ensure your socks don’t fall down. They go great with the
sailor uniforms we carry by Matsukameya of Nagoya!