diff --git a/README.rst b/README.rst
index 299e16c..7fd6a62 100644
--- a/README.rst
+++ b/README.rst
@@ -213,7 +213,7 @@ Actions with mailbox folders
     with MailBox('imap.mail.com').login('test@mail.com', 'pwd') as mailbox:
         # LIST
         for folder_info in mailbox.folder.list('INBOX'):
-            print(folder_info)  # {'name': 'INBOX|cats', 'delim': '|', 'flags': '\\Unmarked \\HasChildren'}
+            print(folder_info)  # {'name': 'INBOX|cats', 'delim': '|', 'flags': ('\\Unmarked', '\\HasChildren')}
         # SET
         mailbox.folder.set('INBOX')
         # GET
diff --git a/imap_tools/folder.py b/imap_tools/folder.py
index 01fe892..606d1e2 100644
--- a/imap_tools/folder.py
+++ b/imap_tools/folder.py
@@ -39,7 +39,7 @@ def exists(self, folder: str) -> bool:
     def create(self, folder: str or bytes):
         """
         Create folder on the server. D
-        *Use email box delimitor to separate folders. Example for "|" delimitor: "folder|sub folder"
+        *Use email box delimiter to separate folders. Example for "|" delimiter: "folder|sub folder"
         """
         result = self.mailbox.box._simple_command('CREATE', self._encode_folder(folder))
         check_command_status('CREATE', result)
@@ -96,9 +96,9 @@ def list(self, folder: str or bytes = '', search_args: str = '*', subscribed_onl
             % is similar to * but it does not match a hierarchy delimiter
         :param subscribed_only: bool - get only subscribed folders
         :return: [dict(
-            flags: str - folder flags,
-            delim: str - delimitor,
             name: str - folder name,
+            delim: str - delimiter,
+            flags: tuple(str) - folder flags,
         )]
         """
         folder_item_re = re.compile(r'\((?P<flags>[\S ]*)\) "(?P<delim>[\S ]+)" (?P<name>.+)')
@@ -122,5 +122,6 @@ def list(self, folder: str or bytes = '', search_args: str = '*', subscribed_onl
                 folder_dict['name'] = imap_utf7.decode(folder_item[1])
             else:
                 continue
+            folder_dict['flags'] = tuple(folder_dict['flags'].split())  # noqa
             result.append(folder_dict)
         return result
diff --git a/imap_tools/mailbox.py b/imap_tools/mailbox.py
index 6659662..dcf70a6 100644
--- a/imap_tools/mailbox.py
+++ b/imap_tools/mailbox.py
@@ -51,7 +51,7 @@ def fetch(self, criteria: str or bytes = 'ALL', charset: str = 'US-ASCII', limit
         :param miss_no_uid: miss emails without uid
         :param mark_seen: mark emails as seen on fetch
         :param reverse: in order from the larger date to the smaller
-        :param headers_only: get only email headers
+        :param headers_only: get only email headers (without text, html, attachments)
         :return generator: MailMessage
         """
         search_result = self.box.search(charset, self._criteria_encoder(criteria, charset))
diff --git a/release_notes.rst b/release_notes.rst
index db5559c..6a83b77 100644
--- a/release_notes.rst
+++ b/release_notes.rst
@@ -1,8 +1,8 @@
 0.16.0
 ======
 * added BaseMailBox.fetch headers_only argument - get only email headers
-* BaseMailBox.attachments now returns inline/forwarded nameless attachments
-
+* BaseMailBox.attachments now can returns nameless attachments (inline/forwarded)
+* MailBoxFolderManager.list result changed: item['flags'] now are tuple(str)
 
 0.15.0
 ======
diff --git a/tests/test_folders.py b/tests/test_folders.py
index 1bac15d..70271d1 100644
--- a/tests/test_folders.py
+++ b/tests/test_folders.py
@@ -20,9 +20,11 @@ def test_folders(self):
             check_folder_set = {mailbox.folder_test_base, mailbox.folder_test_temp1, mailbox.folder_test_temp2}
             self.assertTrue(check_folder_set.issubset(set([i['name'] for i in folder_list])))
             for folder in folder_list:
-                self.assertIs(type(folder['flags']), str)
                 self.assertIs(type(folder['delim']), str)
                 self.assertIs(type(folder['name']), str)
+                for flag in folder['flags']:
+                    self.assertIs(type(flag), str)
+
             # SET, GET
             mailbox.folder.set(mailbox.folder_test_base)
             self.assertEqual(mailbox.folder.get(), mailbox.folder_test_base)