The swatch was done on #7 addi turbo needles and is exactly 20 stitches to 4 inches with Cascade 220 yarn.
This is the first time I have used Cascade 220 yarn for anything other than a felted project. So I really needed to do a swatch for this vest as I am not familiar with how the yarn should feel knitted to the correct guage recommended on the yarn label.
I will use #5 addi turbo needles for ribbing, armholes and neck band and #7 for the body of the vest.