Butterfly bags come in a variety of shapes and sizes. This Duffle Backpack is two bags in one. It can be a duffle bag or a backpack, making it highly functional for a wide range of equipment with comfortable and adjustable shoulder straps. About Butterfly - Hikosuke Tamasu founded Tamasu Co., Ltd. in the small town of Yanai City, Japan in 1950. This was the beginning of a company career which is almost unique in table tennis. A renowned international for Japan, Tamasu fulfilled his dream of a lifetime when he made his hobby his profession. At that time, he could hardly imagine that he would make Butterfly the leading brand worldwide. Creativity, durability, and a profound technical knowledge meant success. 0ver and over again he looked for new possibilities in order to optimize techniques by innovative playing material. Tamasu realized that each player is different and has strengths and weaknesses. By offering individual playing material Tamasu wanted to help players right from the beginning to emphasize their individuality. Since 1983 Butterfly has its own training and research center in Tokyo. Highly qualified scientists co-operate with world class players and coaches for the development of rubber and blade technology. Butterfly's rubbers and blades are used by more than half of the participants at World and European Championships.