The purpose of this study is to suggest a direction for the development of unlined underwear design. A style for unlined underwear can take strong points and compensate for weak points by using the characteristics of wire brassieres and bralettes. As a method for research, we based our study on literature and data such as previous studies, professional books, internet articles, and fashion magazines. As a result of analyzing the brassiere’s status in lines like ‘FOREVER 21’ and ‘VICTORIA’S SECRET’, we determined that ‘FOREVER 21’ reflects the trend of unlined style underwear, and ‘VICTORIA’S SECRET’ has both unlined and wire brassieres to make breast correction. In the case of unlined style brassieres, a wire is put in order to gather the chest for compromising comfort and correction. In order to express the possibility of expressing various feelings even in unlined style, Design 1 lets everyone know that unlined underwear can be very comfortable as a daily, not used only occasionally for events. Design 2 demonstrates that besides the artificial feeling of using the strap for a special day or event, it can be expressed naturally by using the lace as it is. Design 3 expresses the luxurious and sexy, rather than the low-grade decadent sexy, by using the feeling of the single layer lace and the pearl decoration for wedding and honeymoon.

Abstract
 I. Introduction
 Ⅱ. Theoretical Research on Underwear
  1. Definition and classification of underwear
  2. Function and classification of brassiere
  3. Function and classification of panty
  4. Function and structure of waspi
 Ⅲ. Analysis on the Current State of Unlined Underwear Design
  1. FOREVER 21
  2. VICTORIA’S SECRET
 Ⅳ. Development of Unlined Underwear Design
  1. Design intent
  2. Product description
 Ⅴ. Conclusion
 References

• Eun-Ji Lee(Dept. of Clothing & Textiles, Hanyang University) | 이은지
• Younhee Lee(Dept. of Clothing & Textiles, Hanyang University) | 이연희 Corresponding author