diff --git a/CHANGES/1157.bugfix.rst b/CHANGES/1157.bugfix.rst
new file mode 120000
index 000000000..0082490cd
--- /dev/null
+++ b/CHANGES/1157.bugfix.rst
@@ -0,0 +1 @@
+1158.bugfix.rst
\ No newline at end of file
diff --git a/CHANGES/1158.bugfix.rst b/CHANGES/1158.bugfix.rst
new file mode 100644
index 000000000..d6f8330e2
--- /dev/null
+++ b/CHANGES/1158.bugfix.rst
@@ -0,0 +1 @@
+Fixed IPv6 addresses missing brackets when the :class:`~yarl.URL` was converted to a string -- by :user:`bdraco`.
diff --git a/tests/test_url_build.py b/tests/test_url_build.py
index 1d5c4d09c..b6675c294 100644
--- a/tests/test_url_build.py
+++ b/tests/test_url_build.py
@@ -17,17 +17,22 @@ def test_build_simple():
 
 def test_url_build_ipv6():
     u = URL.build(scheme="http", host="::1")
-    assert str(u) == "http://::1"
+    assert str(u) == "http://[::1]"
 
 
-def test_url_build_ipv6_brackets():
-    u = URL.build(scheme="http", host="[::1]")
-    assert str(u) == "http://::1"
+def test_url_build_ipv6_brackets_encoded():
+    u = URL.build(scheme="http", host="[::1]", encoded=True)
+    assert str(u) == "http://[::1]"
+
+
+def test_url_build_ipv6_brackets_not_encoded():
+    u = URL.build(scheme="http", host="::1", encoded=False)
+    assert str(u) == "http://[::1]"
 
 
 def test_url_ipv4_in_ipv6():
     u = URL.build(scheme="http", host="2001:db8:122:344::192.0.2.33")
-    assert str(u) == "http://2001:db8:122:344::c000:221"
+    assert str(u) == "http://[2001:db8:122:344::c000:221]"
 
 
 def test_build_with_scheme():
diff --git a/tests/test_url_parsing.py b/tests/test_url_parsing.py
index 4fe95185e..0d58c9d09 100644
--- a/tests/test_url_parsing.py
+++ b/tests/test_url_parsing.py
@@ -604,3 +604,28 @@ def test_schemes_that_require_host(scheme: str) -> None:
     )
     with pytest.raises(ValueError, match=expect):
         URL(f"{scheme}://:1")
+
+
+@pytest.mark.parametrize(
+    ("url", "hostname", "hostname_without_brackets"),
+    [
+        ("http://[::1]", "[::1]", "::1"),
+        ("http://[::1]:8080", "[::1]", "::1"),
+        ("http://127.0.0.1:8080", "127.0.0.1", "127.0.0.1"),
+        (
+            "http://xn--jxagkqfkduily1i.eu",
+            "xn--jxagkqfkduily1i.eu",
+            "xn--jxagkqfkduily1i.eu",
+        ),
+    ],
+)
+def test_url_round_trips(
+    url: str, hostname: str, hostname_without_brackets: str
+) -> None:
+    """Verify that URLs round-trip correctly."""
+    parsed = URL(url)
+    assert parsed._val.hostname == hostname_without_brackets
+    assert parsed.raw_host == hostname_without_brackets
+    assert parsed.host_subcomponent == hostname
+    assert str(parsed) == url
+    assert str(URL(str(parsed))) == url
diff --git a/yarl/_url.py b/yarl/_url.py
index a61a7f1d2..37e4739fa 100644
--- a/yarl/_url.py
+++ b/yarl/_url.py
@@ -395,7 +395,7 @@ def __str__(self) -> str:
                 netloc=self._make_netloc(
                     self.raw_user,
                     self.raw_password,
-                    self.raw_host,
+                    self.host_subcomponent,
                     port,
                     encode_host=False,
                 )