See a Bootstrap 3 example here. If you use a 1.6.3 or newer, you don't need to to anything else, as the data-api automatically picks up the <select>s with the selectpicker class. If you use an older ...

A custom select / multiselect for Bootstrap using button dropdown, designed to behave like regular Bootstrap selects. Tested with React 0.12 and Bootstrap 3. Based on ...