So modal underwear is very good, but now many modal underwear on the market are half modal and half other materials, which are cheap. They are just under the banner of modal.
The real modal is very expensive, 100 is more than one kilogram. Sell underwear for at least 3.40, and you won't lose money.
Besides, there are only modal underwear on the market now, and there are basically no modal bras. There are suspenders, pajamas and yoga clothes, but they are all expensive.
The advantage of buying underwear online is that it is cheap and has many styles. But before buying, you must know your size and suitable style very accurately, otherwise don't buy it online. Wipe your size before you go to the underwear store.
The most important thing to buy underwear is to try it on yourself. There is no try-on online, so unless you are good at choosing underwear for yourself, go to the underwear store first.