This pattern is for advanced knitter. Neck opening is done in short rows (which is not so complicated).
What is really complicated is how sleeves are done: cup is shaped seamlessly in short rows inside of the arm-opening.
Waist line is shaped following usual increase technique.

Small (46cm/18in ) 10 balls
Medium (48cm/18.8in) 12 balls
Large(50cm/19.7in) 14 balls

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Customer support for this design is here
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