* Fame: Fenteng underwear is a first-line underwear brand in China, occupying a place among the top ten famous underwear home clothing brands in China, while Ai Ai underwear is a second-line brand in China, with relatively low popularity.
* Quality: Fenteng underwear is mainly made of pure cotton, and the fabric is comfortable and not tight, while Ai Ai underwear is made of high-grade Tencel material. Relatively speaking, Fenteng underwear is more comfortable and of better quality.
On the whole, Fenteng underwear is better than Ai Ai underwear in terms of popularity and quality. However, it should be noted that personal preference, physical condition and the applicability of underwear should also be considered when choosing underwear to ensure the selection of the most suitable products.