This study had researched purchase trend and preference of jacket design in order to develop a prototype of an outdoor wear jacket that can be worn for a light outdoor activity targeting middle-aged men and women. An outdoor wear was purchased mostly in a permanent discount store and functionality such as activity and material was considered as important in addition to design. There was difference in ages for the jacket style, but in general, people preferred a wind protection jacket and men preferred black colors and women preferred red colors. For the design of jacket, both men and women had preferred a jacket that has moderate fitness with detachable hat and a zipper, and it was applied to the prototype. The jacket had applied different color in the armhole line that is connected to sleeve in order to make waist look slimmer and stretchable material was used to improve functionality in the armpit part.