female Athletic small, female Sprite Large confirmed the skin is visible under the neck collar from the back of the neck and the skin of the neck clips really badly through the "neck collar" both at the top of the collar and in the area between the neck and chestplate.
Is this a recent change, or has it always done this? It seems there's always been clipping issues with the "non-standard" body types, I've noticed some similar problems with certain styles on the Large Brute/Bodybuilder Body Type. When asked to fix such things in the past, the Devs have said that they had no intention to fix it. But with that said, take some screenshots and post them here to show exactly what's going on.