Hi Hutton!
It would be good to see an example of how the clothing you are using does not fit on the figure you are using. Naked doesn't show that!

In the absence of an example... and assuming you are talking about conforming clothing... the simple answer is this:

Conforming clothing for V4 will fit V4 in her basic shape. When you adjust her body shape, the clothes will adjust accurately if you only use the V4 morphs that the clothes vendor has built into the clothes product. As soon as you start to make adjustments to V4 using morphs that the clothes vendor has not accounted for, then the clothes will not follow the changes and they will no longer fit.

There are ways to make clothing adjust to V4 morphs that the clothes vendor does not build in, using magnets or programs like Wardrobe Wizard. I don't really get into that, so others can help you if you want to know more about that.

There is one other thing to be aware of, even if your morphing clothes fit well. V4 has so-called Joint Control Morphs (JCMs), which change the shape of certain parts of her body when you move her joints. For example, lift her arm from the shoulder, and her breast will lift slightly. This will also produce clothing 'poke-through' very often.

There are two easy ways to eliminate JCM poke-through. Firstly, by using the 'Magnetise clothing to V4' pose on the affected clothing part. (For your first, or only, V4 in the scene, use the first 'Magnetise' pose). If that does not completely eliminate it, then you can reduce the JCM effect by turning down V4's 'Base - Strength' dial to something less than zero. Confusingly, zero on this dial gives full JCM effects, and -1 cancels out the JCM effects completely.

Hope this helps a little!
Izi

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)