Mimi Messenger Bag. Basic Twill accented with fabric from a printed batik Sarong used as flap, lining and coordinating adjustable strap. 100 % cotton. Zipper and open pockets inside. Size: 16 inches wide x 12 inches long. Surabaya Bags are produced by Tiara Handicraft at the Bina Karya Tiara Foundation in Surabaya, Java. Titik Winarti created the foundation eight years ago to provide vocational training and job opportunities for physically handicapped young people from villages in east and central Java.