{% if fulfillment.tracking_numbers.size == 1 and fulfillment.tracking_company and fulfillment.tracking_url %}
{{ fulfillment.tracking_company }} tracking number: {{ fulfillment.tracking_numbers.first }}
{% elsif fulfillment.tracking_numbers.size == 1 %}
Tracking number: {{ fulfillment.tracking_numbers.first }}
{% else %}
Tracking numbers:
{% for tracking_number in fulfillment.tracking_numbers %}
{{ tracking_number }}
{% endfor %}
{% endif %}
{% endif %}