Adding a Mock Neck to Your Slopers Using the Collar Tool



You can activate the collar tool HERE


You can absolutely add the collar pattern with any of your slopers! We will add an update that adds the neckline circumference to the measurement legend, however, in the meantime you can use the following method:

It depends on how you’re using the sloper:

  • If you’re adding new design lines (typically slopers are meant to have design lines added):
    Measure the neckline directly from your modified sloper (after you’ve drawn your new lines). Use that value as the “Neckline circumference – bottom edge.” Then, use your actual neck measurement as the “Neck circumference – top edge.”

  • If you're using the Open Back Halter Top, Closed Back Halter Top or Open Back Halter top leotard patterns
    • The neck circumference information will be available in the measurement legend.

  • If you’re using the slopers exactly as it generates (no new design lines):
    The neckline on the base sloper already includes negative ease, which makes it smaller than your real neck measurement. Since the top edge of the collar tool represents your neck circumference, you’ll need to increase the neck measurement you input into your sloper tool so that the generated neckline (bottom edge) is larger than your actual neck.

    To figure this out, increase your neck measurement by an amount greater than the level of negative ease used in your sloper. Then, apply that same negative ease percentage to get the adjusted value for the collar tool.

    Example:
    If your neck is 36.2 cm and your sloper uses 12% negative ease, try increasing the neck measurement by 20% (a bit more than the 12% ease used in the sloper):

    • Input for collar tool: 36.2 × (1 + 0.20) = 43.44 cm

    • Then, apply the 12% negative ease to get the actual neck circumference value to enter as the top edge:
      43.44 × (1 − 0.12) = 38.22 cm

Key takeaway:
The bottom edge (neckline on your sloper) should always be larger than the top edge (neck measurement), so increasing the input value ensures the collar tool generates the pattern, as well as as, a proper fit when combining the dartless sloper with the collar tool.

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