Add extra branding to the baseball cap by stitching text into the vertical seam of the cap.
Highlights:

• use optical density to fill the back of your letter.
• pull out the front of the hat and label before sewing.
• use two 1.5 ounce tear pads for stability.
  Promotional baseball caps are a staple of the decorative clothing industry. While there are many different styles – from rebound to truck driver to five panels – the real key to standing out from the rest of the headwear is the trim. Embroidery coach Joyce Jagger explains how to add letters to the vertical seam of a baseball cap to add a stunning effect to the classic accessory.
  Choose a baseball cap. As for this particular design, a proper mesh baseball cap provides the best canvas because it has the proper stretch and space for vertical lettering.
  Create the design. The design on the back requires a brightness fill letter, which can also be a contrasting color or a blending cap. You also need to decide whether to fill the letters with the same shape or if you want to create a different layered backfill effect.
  Upload your design to the machine and rotate it 270 degrees so that the embroidery starts at the center of the stitch – at the top of the word – and then goes down vertically. The starting point of the design is the outer center of the letter “n”.
  Circle your hat. Using a circular system with a rectangular clamp, place two 1.5-ounce removal pads on the bottom of the clamp. Tape the Promotional cap to the front to prevent it from slipping off as you circle it. Align back seam center with chuck center. The seam must be straight and the bottom of the cap is aligned with the back edge of the chuck.