{%- for year in filter.years %}
<input type="hidden" name="year" value="{{ year }}">
{%- endfor %}
{%- for item_type in filter.types %}
<input type="hidden" name="type" value="{{ item_type }}">
{%- endfor %}
{%- if filter.featured %}
<input type="hidden" name="featured" value="1">
{%- endif %}