4足組 ブラック ソックス エコディム セミオペーク 30D

They're surprisingly soft for how sturdy they feel — the 28 denier fabric is just the right thickness for wearing under sneakers without slipping down. I've already worn mine several times and they show no signs of wear.

For the price, these hold up pretty well — the 28D denier feels sturdy without being too heavy. They're plain black and basic, but I've worn them a few times and they haven't lost shape or gotten holes, which is more than I can say for pricier pairs.

The 30 denier opacity is exactly what I expected for work, but the elastic at the top could be a bit tighter to prevent sliding down. They hold up fine after a few washes though.