In addition to the materials listed in the pattern, you will also need:
1 Dritz Sew-on Snap, size 4 (or larger)
Needle and Thread
Instructions for adding the Snap:
With sweater buttoned closed, sew the "male side" of the snap on right front edge of sweater opposite the first neckline decrease, and sew the "female side" of snap opposite it on left front.
This will be well hidden and serves to keep the seed stitch border from sticking out.