drop down field that also allows input

is there a way to allow a user to either input a text value or select from a drop down and the results gets stored in the form field. for example below: the list of valid values are small, medium or large but my user wants to enter ‘extralarge’ and i want to allow it into my field.

in other words combining the functionality of:
<INPUT TYPE=TEXT NAME=”sizepizza”> and
<SELECT NAME=”sizepizza”>
<OPTION VALUE=”s”>small
<OPTION VALUE=”m”>medium
<OPTION VALUE=”l”>large
</SELECT>

Also in #HTML _↴