1, design concept: the concept of the diary of the first kiss is very advanced, scientific and technological, environmentally friendly, and the product is comfortable to wear, avoiding diseases caused by women wearing some uncomfortable underwear.

2. Underwear material: the first kiss brand adopts biomass graphene fiber fabric, mulberry silk fiber material, 120 blue crystal Tencel, Italian bioceramic functional fabric, etc. Whether it is skin lining or surface fabric, it is advanced, excellent, healthy, harmless and comfortable.