diff --git a/features/hotlistdetails.py b/features/hotlistdetails.py
new file mode 100644
index 0000000..d3bf3b2
--- /dev/null
+++ b/features/hotlistdetails.py
@@ -0,0 +1,123 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file or at
+# https://developers.google.com/open-source/licenses/bsd
+
+"""Servlets for hotlist details main subtab."""
+from __future__ import print_function
+from __future__ import division
+from __future__ import absolute_import
+
+import time
+
+import ezt
+
+from features import hotlist_helpers
+from framework import framework_bizobj
+from framework import framework_helpers
+from framework import servlet
+from framework import permissions
+from framework import urls
+
+_MSG_DESCRIPTION_MISSING = 'Description is missing.'
+_MSG_SUMMARY_MISSING = 'Summary is missing.'
+_MSG_NAME_MISSING = 'Hotlist name is missing.'
+_MSG_COL_SPEC_MISSING = 'Hotlist default columns are missing.'
+_MSG_HOTLIST_NAME_NOT_AVAIL = 'You already have a hotlist with that name.'
+# pylint: disable=line-too-long
+_MSG_INVALID_HOTLIST_NAME = "Invalid hotlist name. Please make sure your hotlist name begins with a letter followed by any number of letters, numbers, -'s, and .'s"
+
+
+class HotlistDetails(servlet.Servlet):
+  """A page with hotlist details and editing options."""
+
+  _PAGE_TEMPLATE = 'features/hotlist-details-page.ezt'
+  _MAIN_TAB_MODE = servlet.Servlet.HOTLIST_TAB_DETAILS
+
+  def AssertBasePermission(self, mr):
+    super(HotlistDetails, self).AssertBasePermission(mr)
+    if not permissions.CanViewHotlist(
+        mr.auth.effective_ids, mr.perms, mr.hotlist):
+      raise permissions.PermissionException(
+          'User is not allowed to view the hotlist details')
+
+  def GatherPageData(self, mr):
+    """Buil up a dictionary of data values to use when rendering the page."""
+    if mr.auth.user_id:
+      self.services.user.AddVisitedHotlist(
+          mr.cnxn, mr.auth.user_id, mr.hotlist_id)
+    cant_administer_hotlist = not permissions.CanAdministerHotlist(
+        mr.auth.effective_ids, mr.perms, mr.hotlist)
+
+    return {
+        'initial_summary': mr.hotlist.summary,
+        'initial_description': mr.hotlist.description,
+        'initial_name': mr.hotlist.name,
+        'initial_default_col_spec': mr.hotlist.default_col_spec,
+        'initial_is_private': ezt.boolean(mr.hotlist.is_private),
+        'cant_administer_hotlist': ezt.boolean(cant_administer_hotlist),
+        'viewing_user_page': ezt.boolean(True),
+        'new_ui_url': '%s/%s/settings' % (urls.HOTLISTS, mr.hotlist_id),
+    }
+
+  def ProcessFormData(self, mr, post_data):
+    """Process the posted form."""
+    if not permissions.CanAdministerHotlist(
+        mr.auth.effective_ids, mr.perms, mr.hotlist):
+      raise permissions.PermissionException(
+          'User is not allowed to update hotlist settings.')
+
+    if post_data.get('deletestate') == 'true':
+      hotlist_helpers.RemoveHotlist(mr.cnxn, mr.hotlist_id, self.services)
+      return framework_helpers.FormatAbsoluteURL(
+          mr, '/u/%s/hotlists' % mr.auth.email,
+          saved=1, ts=int(time.time()), include_project=False)
+
+    (summary, description, name, default_col_spec) = self._ParseMetaData(
+        post_data, mr)
+    is_private = post_data.get('is_private') != 'no'
+
+    if not mr.errors.AnyErrors():
+      self.services.features.UpdateHotlist(
+          mr.cnxn, mr.hotlist.hotlist_id, name=name, summary=summary,
+          description=description, is_private=is_private,
+          default_col_spec=default_col_spec)
+
+    if mr.errors.AnyErrors():
+      self.PleaseCorrect(
+          mr, initial_summary=summary, initial_description=description,
+          initial_name=name, initial_default_col_spec=default_col_spec)
+    else:
+      return framework_helpers.FormatAbsoluteURL(
+          mr, '/u/%s/hotlists/%s%s' % (
+              mr.auth.user_id, mr.hotlist_id, urls.HOTLIST_DETAIL),
+          saved=1, ts=int(time.time()),
+          include_project=False)
+
+  def _ParseMetaData(self, post_data, mr):
+    """Process a POST on the hotlist metadata."""
+    summary = None
+    description = ''
+    name = None
+    default_col_spec = None
+
+    if 'summary' in post_data:
+      summary = post_data['summary']
+      if not summary:
+        mr.errors.summary = _MSG_SUMMARY_MISSING
+    if 'description' in post_data:
+      description = post_data['description']
+    if 'name' in post_data:
+      name = post_data['name']
+      if not name:
+        mr.errors.name = _MSG_NAME_MISSING
+      else:
+        if not framework_bizobj.IsValidHotlistName(name):
+          mr.errors.name = _MSG_INVALID_HOTLIST_NAME
+        elif self.services.features.LookupHotlistIDs(
+            mr.cnxn, [name], [mr.auth.user_id]) and (
+                mr.hotlist.name.lower() != name.lower()):
+          mr.errors.name = _MSG_HOTLIST_NAME_NOT_AVAIL
+    if 'default_col_spec' in post_data:
+      default_col_spec = post_data['default_col_spec']
+    return summary, description, name, default_col_spec