diff --git a/caldav/elements.go b/caldav/elements.go
index c6706f4..4ffa827 100644
--- a/caldav/elements.go
+++ b/caldav/elements.go
@@ -8,10 +8,41 @@ import (
 
 const namespace = "urn:ietf:params:xml:ns:caldav"
 
-var calendarHomeSetName = xml.Name{namespace, "calendar-home-set"}
+var (
+	calendarHomeSetName = xml.Name{namespace, "calendar-home-set"}
+
+	calendarDescriptionName   = xml.Name{namespace, "calendar-description"}
+	supportedCalendarDataName = xml.Name{namespace, "supported-calendar-data"}
+	maxResourceSizeName       = xml.Name{namespace, "max-resource-size"}
+)
 
 // https://tools.ietf.org/html/rfc4791#section-6.2.1
 type calendarHomeSet struct {
 	XMLName xml.Name      `xml:"urn:ietf:params:xml:ns:caldav calendar-home-set"`
 	Href    internal.Href `xml:"DAV: href"`
 }
+
+// https://tools.ietf.org/html/rfc4791#section-5.2.1
+type calendarDescription struct {
+	XMLName     xml.Name `xml:"urn:ietf:params:xml:ns:caldav calendar-description"`
+	Description string   `xml:",chardata"`
+}
+
+// https://tools.ietf.org/html/rfc4791#section-5.2.4
+type supportedCalendarData struct {
+	XMLName xml.Name           `xml:"urn:ietf:params:xml:ns:caldav supported-calendar-data"`
+	Types   []calendarDataType `xml:"calendar-data"`
+}
+
+// https://tools.ietf.org/html/rfc4791#section-9.6
+type calendarDataType struct {
+	XMLName     xml.Name `xml:"urn:ietf:params:xml:ns:caldav calendar-data"`
+	ContentType string   `xml:"content-type,attr"`
+	Version     string   `xml:"version,attr"`
+}
+
+// https://tools.ietf.org/html/rfc4791#section-5.2.5
+type maxResourceSize struct {
+	XMLName xml.Name `xml:"urn:ietf:params:xml:ns:caldav max-resource-size"`
+	Size    int64    `xml:",chardata"`
+}