diff --git a/httpx/_multipart.py b/httpx/_multipart.py
index 2c08776f4b..cf8f76b601 100644
--- a/httpx/_multipart.py
+++ b/httpx/_multipart.py
@@ -43,14 +43,6 @@ class DataField:
     def __init__(
         self, name: str, value: typing.Union[str, bytes, int, float, None]
     ) -> None:
-        if not isinstance(name, str):
-            raise TypeError(
-                f"Invalid type for name. Expected str, got {type(name)}: {name!r}"
-            )
-        if value is not None and not isinstance(value, (str, bytes, int, float)):
-            raise TypeError(
-                f"Invalid type for value. Expected primitive type, got {type(value)}: {value!r}"
-            )
         self.name = name
         self.value: typing.Union[str, bytes] = (
             value if isinstance(value, bytes) else primitive_value_to_str(value)
diff --git a/tests/test_multipart.py b/tests/test_multipart.py
index 1d9c12feea..9a0b8b5665 100644
--- a/tests/test_multipart.py
+++ b/tests/test_multipart.py
@@ -92,33 +92,6 @@ def test_multipart_header_without_boundary(header: str) -> None:
     assert response.request.headers["Content-Type"] == header
 
 
-@pytest.mark.parametrize(("key"), (b"abc", 1, 2.3, None))
-def test_multipart_invalid_key(key):
-    client = httpx.Client(transport=httpx.MockTransport(echo_request_content))
-
-    data = {key: "abc"}
-    files = {"file": io.BytesIO(b"<file content>")}
-    with pytest.raises(TypeError) as e:
-        client.post(
-            "http://127.0.0.1:8000/",
-            data=data,
-            files=files,
-        )
-    assert "Invalid type for name" in str(e.value)
-    assert repr(key) in str(e.value)
-
-
-@pytest.mark.parametrize(("value"), (object(), {"key": "value"}))
-def test_multipart_invalid_value(value):
-    client = httpx.Client(transport=httpx.MockTransport(echo_request_content))
-
-    data = {"text": value}
-    files = {"file": io.BytesIO(b"<file content>")}
-    with pytest.raises(TypeError) as e:
-        client.post("http://127.0.0.1:8000/", data=data, files=files)
-    assert "Invalid type for value" in str(e.value)
-
-
 def test_multipart_file_tuple():
     client = httpx.Client(transport=httpx.MockTransport(echo_request_content))