Full Bicep Adjustment

Follow these directions to add width to the bicep in the Cottonwood Crop, Tee & Tunic or any other pattern with a “grown on” sleeve.

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Follow the directions below to add width to the bicep in the Cottonwood Crop, Tee & Tunic or any other pattern with a “grown on” sleeve. 

  1. Draw a line through both the front and back pattern pieces, parallel to the lengthen shorten line. The line should pass through the armhole but below the neckline.
    Line drawing of the front and back pattern pieces. Dotted horizontal line cuts across the full piece, just below the neckline and through the sleeve.
  2. Cut along the line and separate the pattern pieces the same amount on both the front and back pieces to add length through the armhole.
    NOTE: To calculate how much length you need to add, determine the difference between the bicep of the pattern piece (as shown in the finished garment measurement chart) and your desired bicep size and then divide that number by 2. For example, if you need an additional 1” for comfort, you would need to add 0.5” length to both the front and the back pattern pieces.
    Line drawing of the front and back pattern pieces. Horizontal cut separates the top from bottom just below the neckline and through the sleeve.
  3. Tape a scrap piece of paper behind the separated pattern pieces, making sure to keep the added length consistent across both pattern pieces.
    Separated pattern pieces are joined together with a scrap paper and tape, to fill in added space.
  4. Connect the pattern lines across the added length, blending to make a smooth curve. 


  5. Add length to the sleeve band equal to the total length you added to the armhole (i.e. 1” from the example above).
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