The best way to render field content without any  wrapper I have a content type with filefield "ttf" wich I want to render as Url to the file .
with this url to file I want to create an link : 

&lt;a href="&lt;?php print render($content["field_ttf"]); ?&gt;"&gt;Download&lt;/a&gt;


But this output a wrapper around the url

I know that there is a function field_view_field() that do the Job but I'm looking for a better solution
Look in the core modules/field/theme/ folder, copy the field.tpl.php file to your theme then rename it to whatever the system name for the field is. i.e field--body.tpl.php

Edit the file to remove the surrounding divs and anything else you don't want. All you actually need is the foreach and the render($item);

Don't forget to clear the cache so it will pick up the new file, hope that helps.