- Design: SMFK Retro Collection, utilizing retro-style materials and finishing processes such as garment dyeing/stirring/salting/stone washing to present the vintage texture of the clothing. The Storm Retro Silk Strapless Camisole is inspired by the ancient Chinese flat collar design. The material is a ribbed fabric made of mulberry silk mixed with modal, which is light and soft. The collar features an embroidered cross flower logo in the center.