1, word of mouth. Dieanfen is a star underwear product brand of Zhongshan Dieanfen Underwear Enterprise Co., Ltd., which has a high sales volume and won unanimous praise and recognition from people, and has a good reputation. Funilai is an underwear brand under Zhongshan Funilai Garment Co., Ltd., which is not well-known and its reputation is lower than that of recent butterflies.

2. materials. Butterfly Lovers underwear is made of pure cotton fabric, which is breathable, not easy to deform and pilling, and has good quality. Funilai underwear is a common fabric, which shrinks and easily deforms.