optional, multiple

id=unique identifier of the fins

Inside <fins> information about the fins is given.

<equipment>

<manufacturer>, <model>, <name>, <nextservicedate>, <notes>, <purchase>, <serialnumber>, <serviceinterval>

<equipment>

(see also <equipment>)

<equipment>
    <fins id="my_red_fins">
        <name>Quickdiver</name>
        <manufacturer>
            <name>DiveFaster</name>
        </manufacturer>
        <model>Flash-of-Lightning</model>
        <!-- no serial number -->
        <purchase>
            <date>
                <year>1960</year><month>10</month><day>12</day><dayofweek>3</dayofweek>
            </date>
            <price currency="DM">80.00</price>
            <shop>
                <name>Diver's Choice</name>
                <address>
                    <!-- address of shop -->
                </address>
                <contact>
                    <!-- phone number, email address etc. -->
                </contact>
                <notes>
                    <!-- additional remarks -->
                </notes>
            </shop>
        </purchase>
        <!-- no service interval -->
    </fins>
</equipment>