Step 1
With right sides facing, stretch your fused collar stand out so that the inside curve meets the neck edge of collar. Pin in place, lining up notches. Stitch together. Trim seam allowance in half and clip around curve. Press seam allowance toward collar stand.
Repeat for under collar.
Step 2
With right sides facing, pin your collar and under collar together all the way around the edge and around the edge of collar stand. Stitch together, leaving a gap about 10cm/4” at the centre back of collar stand. Trim seam allowance in half and clip around curves.
Step 3
Pull collar through to the right side through the gap in collar stand. Give it a good press. With the seam allowance pressed inwards, edgestitch the gap closed.
Step 4
Transfer button placement markings from your pattern piece onto the underside of collar stand. Stitch buttons in place. As this collar is not reversible, you only need buttons on one side of the collar stand.