How to fix deformation of body weight at clothes acc -SOLVED

mauvemorn I'll try it! Thank you!
Let me ask you something. Wich Blender do you recommend to make data transfer and transfer weight. I normally use 2.70 for everything and 2.76 for data transfer, I've read once that other steps shouldn't be done in the latest versions of blender. Is that true?

The reason people in tutorials tell you to download 2.7 is simply because they do not know how to set up Transfer weights or sample color in in 2.76+. Google apparently does not exist for them.
In 2.76-2.79 Transfer weights menu has different default settings and more options that give a much better result.

The best blender is 2.78 but it it is not compatible with s4s for everyone (but is for most). You can try installing it, if CAStools won't appear, use only 2.76, but i've been told that there is no vertex mapping in it.
Do not watch tutorials by people who tell you to download 2.7. They watched one tutorial themselves and never questioned whatever they were tought. These tutorials tend to be identical.

Edit: "feet" is a name of the reference i used when i made that screenshot. You are making a full-body outfit, not feet... 

Change Source layers... from Active to By name like in the picture. By default it is transferring weights of the selected vertex group only

It is not a matter of your version, you are doing something wrong. Nearest face insterpolated has nothing to do with what vertex groups are transferred.
-select your garment and delete all vertex groups from it ( click on the arrow icon and choose Delete all vertex groups) i.postimg.cc/MZsmsY2S/IMG-4934.png ;
- select the full-body outfit, Shift-select the garment, switch to Weight paint, choose Transfer weights;
- choose Nearest face interpolated and By name;
- choose Clean and All groups;
- choose Limit total
- in Edit mode select any vertex and check which vertex groups it is being affected by

mauvemorn It WORKED!!!!!!!!!!!!!!! I've opened at Blender 2.79 and did the same steps. And worked!! I guess was something with my 2.76


thank you very much for your patience to explain !!!

It'a not perrfert at plus size bodies, but it's muuuch better.

Thanks again