Online Parametric Pattern Drafting
Peter Pan Collar Pet Vest Pattern Generator
Create a fitted pet vest pattern with a Peter Pan collar from chest, neck and back-length measurements.
Measure chest, neck, back length and front-leg gap
This fixed Peter Pan collar vest uses chest, neck, back length and front-leg gap. With the pet standing naturally, record the fullest chest, the neck where a collar sits, the back from neck base to just before the tail, and the distance between the inside edges of the front legs.
Review the fixed collar and front-leg openings
This page outputs a fixed Peter Pan collar rather than a collar selector. In the preview, check the collar attachment, back length, chest-piece width and front-leg opening positions. If the openings shift, first recheck front-leg gap and chest circumference.
Allow for collar bulk during the test fit
A Peter Pan collar adds layers around the neck. Test in material close to the final thickness and check breathing, lowering the head, turning and front-leg movement. Remove the garment immediately if the pet shows distress or restricted motion.