Abstract
To find out the most appropriate armhole for students of junior high school in sewing smock, the following three experiments were conducted on 64 girl students attending three different classes in the first year of the junior high school affiliated to the Faculty of Education in Okayama University. (1) Cap height 2cm Sew the underarm seam line of sleeves and the side seam line of body in continuation. (2) Cap height 2cm Sew the underarm seam line of sleeves and the side seam line separately from the intersection of the two seam lines. (3) Cap height 9cm Sew the underarm seam line of sleeves and the side seam line in continuation. We come to conclude that (1) is the best armhole among the three. However, diagonal wrinkles radiated from the intersection of the underarm seam line and the side seam line. Therefore, we need further experiments to find out the right armhole by adjusting the cap height.