According to the official account of WeChat Guangzhou Underwear Exhibition, its soft underwear is the underwear product of Foshan Nanhai Zhenzhiyu Underwear Co., Ltd., which is rounder than those without rims, softer and more comfortable than those with rims, lighter and healthier than those with rims, providing agents with a "stress-free, dynamic" cooperation model and bringing a new wave of easy sales to terminal manufacturers. Therefore, soft underwear is a good underwear product.

Foshan Nanhai Zhenzhiyu Underwear Co., Ltd., formerly founded as Guangzhou Daisiyu 1995, is one of the earliest enterprises in China to set foot in body underwear products. Zhenzhiyu now owns three factories: Guangdong Shantou Xingyufa Industry, Nanhai Zhenzhiyu Underwear Co., Ltd. and Guangdong Heyuan No.3 Underwear Factory.