This week I’m looking at vintage patterns showing sports of the Pan Am Games. (See the first post here.) Today: a mid-century bowling pattern.
Bowling. This early 1960s pattern from Simplicity includes an “action back” shirt and skirt in two lengths. The skirt has inverted pleats in front and back; the shirt, which may be monogrammed, has pleats at the back shoulder seams:
PatternVault 
I would never have noticed the pleats on the back, but those could be very useful for someone like me. All I need to do is figure out how close to put them to the sleeve back seam so they don’t stick out. Perhaps a slight overlap.
They don’t call it an Action Back Shirt for nothing 😉 I think putting the pleats right at the back shoulder seams gives a very mid-century shape, but maybe not the look you’re going for..