You can easily open each collar in a natural way with pose controls.
OVAL SHAPE
The collars have a slightly oval shape morph turned on by default.
NECK FIT
The wearables fit the default pose of the base figures with included morphs. The morphs turn on automaticaly with the wearables loaded. Reset presets are included.
However, you may need to adjust the neck for different poses and figures. You can do that with my free product or with your own custom morphs. Or with any tool that allows you to adjust the figure's neck. Considering the rigid nature of the collar, it is the neck that should be adjusted, and the collar cannot bend.