diff --git a/src/request.rs b/src/request.rs
index 7b7c483..cd32b23 100644
--- a/src/request.rs
+++ b/src/request.rs
@@ -164,7 +164,6 @@ pub struct Request<T> {
 ///
 /// The HTTP request head consists of a method, uri, version, and a set of
 /// header fields.
-#[derive(Debug)]
 pub struct Parts {
     /// The request's method
     pub method: Method,
@@ -486,6 +485,19 @@ impl Parts {
     }
 }
 
+impl fmt::Debug for Parts {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_struct("Parts")
+            .field("method", &self.method)
+            .field("uri", &self.uri)
+            .field("version", &self.version)
+            .field("headers", &self.headers)
+            // omits Extensions because not useful
+            // omits _priv because not useful
+            .finish()
+    }
+}
+
 impl Builder {
     /// Creates a new default instance of `Builder` to construct either a
     /// `Head` or a `Request`.
diff --git a/src/response.rs b/src/response.rs
index 8e60ac3..183e2f6 100644
--- a/src/response.rs
+++ b/src/response.rs
@@ -191,7 +191,6 @@ pub struct Response<T> {
 ///
 /// The HTTP response head consists of a status, version, and a set of
 /// header fields.
-#[derive(Debug)]
 pub struct Parts {
     /// The response's status
     pub status: StatusCode,
@@ -481,6 +480,18 @@ impl Parts {
     }
 }
 
+impl fmt::Debug for Parts {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_struct("Parts")
+            .field("status", &self.status)
+            .field("version", &self.version)
+            .field("headers", &self.headers)
+            // omits Extensions because not useful
+            // omits _priv because not useful
+            .finish()
+    }
+}
+
 impl Builder {
     /// Creates a new default instance of `Builder` to construct either a
     /// `Head` or a `Response`.