diff --git a/README.rst b/README.rst
index d2cda70..4753a81 100644
--- a/README.rst
+++ b/README.rst
@@ -51,7 +51,22 @@ Next, include the ``wagtail_personalisation`` and
     ]
 
 Make sure that ``django.contrib.sessions.middleware.SessionMiddleware`` has
-been added in first.
+been added in first, this is a prerequisite for this project.
+
+
+Changing segments adapter
+-------------------------
+To change the segments adapter, first make a new one based on the
+``BaseSegmentsAdapter``
+
+.. code-block:: python
+
+    class YourSegmentsAdapter(BaseSegmentsAdapter):
+        # Add your own logic here
+
+Add the ``PERSONALISATION_SEGMENTS_ADAPTER`` setting to your settings.py and
+choose your own adapter.
+
 
 Sandbox
 -------
diff --git a/src/wagtail_personalisation/adapters.py b/src/wagtail_personalisation/adapters.py
index ee571c7..55afea3 100644
--- a/src/wagtail_personalisation/adapters.py
+++ b/src/wagtail_personalisation/adapters.py
@@ -1,6 +1,8 @@
 from __future__ import absolute_import, unicode_literals
 
+from django.conf import settings
 from django.db.models import F
+from django.utils.module_loading import import_string
 
 from wagtail_personalisation.models import Segment
 from wagtail_personalisation.rules import AbstractBaseRule
@@ -10,6 +12,15 @@ from wagtail_personalisation.utils import create_segment_dictionary
 class BaseSegmentsAdapter(object):
     """Base segments adapter."""
 
+    def __init__(self, request):
+        """Prepare the request session for segment storage.
+
+        :param request: The http request
+        :type request: django.http.HttpRequest
+
+        """
+        self.request = request
+
     def setup(self):
         """Prepare the adapter for segment storage."""
         return None
@@ -64,15 +75,8 @@ class BaseSegmentsAdapter(object):
 class SessionSegmentsAdapter(BaseSegmentsAdapter):
     """Segment adapter that uses Django's session backend."""
 
-    def setup(self, request):
-        """Prepare the request session for segment storage.
-
-        :param request: The http request
-        :type request: django.http.HttpRequest
-
-        """
-        self.request = request
-
+    def __init__(self, request):
+        super(SessionSegmentsAdapter, self).__init__(request)
         self.request.session.setdefault('segments', [])
 
     def get_all_segments(self):
@@ -166,3 +170,18 @@ class SessionSegmentsAdapter(BaseSegmentsAdapter):
         self.request.session['segments'] = new_segments
 
         self.update_visit_count()
+
+
+SEGMENT_ADAPTER_CLASS = import_string(getattr(
+    settings,
+    'PERSONALISATION_SEGMENTS_ADAPTER',
+    'wagtail_personalisation.adapters.SessionSegmentsAdapter'))
+
+
+def get_segment_adapter(request):
+    """Return the Segment Adapter for the given request"""
+    try:
+        return request.segment_adapter
+    except AttributeError:
+        request.segment_adapter = SEGMENT_ADAPTER_CLASS(request)
+        return request.segment_adapter
diff --git a/src/wagtail_personalisation/app_settings.py b/src/wagtail_personalisation/app_settings.py
deleted file mode 100644
index cfcf84d..0000000
--- a/src/wagtail_personalisation/app_settings.py
+++ /dev/null
@@ -1,9 +0,0 @@
-from django.conf import settings
-from django.utils.module_loading import import_string
-
-# Create a setting for the segments adapter to allow
-# overwriting of the provided adapter's functionality.
-segments_adapter = import_string(getattr(
-    settings,
-    'PERSONALISATION_SEGMENTS_ADAPTER',
-    'wagtail_personalisation.adapters.SessionSegmentsAdapter'))()
diff --git a/src/wagtail_personalisation/templatetags/datalayer_tags.py b/src/wagtail_personalisation/templatetags/datalayer_tags.py
index f5d7a64..ccca56f 100644
--- a/src/wagtail_personalisation/templatetags/datalayer_tags.py
+++ b/src/wagtail_personalisation/templatetags/datalayer_tags.py
@@ -1,16 +1,18 @@
 from django.template import Library
 
-from wagtail_personalisation.app_settings import segments_adapter
+from wagtail_personalisation.adapters import get_segment_adapter
 
 register = Library()
 
 
-@register.inclusion_tag('wagtail_personalisation/tags/datalayer.html')
-def render_datalayer():
+@register.inclusion_tag('wagtail_personalisation/tags/datalayer.html', takes_context=True)
+def render_datalayer(context):
     """Render the sessions active segments in a data layer script tag."""
-    segments = segments_adapter.get_all_segments()
-    segment_names = [item['encoded_name'] for item in segments]
+    request = context.get('request')
+    if request:
+        segments = get_segment_adapter(request).get_all_segments()
+        segment_names = [item['encoded_name'] for item in segments]
 
-    return {
-        'segments': segment_names
-    }
+        return {
+            'segments': segment_names
+        }
diff --git a/src/wagtail_personalisation/wagtail_hooks.py b/src/wagtail_personalisation/wagtail_hooks.py
index 47843c3..cb66a82 100644
--- a/src/wagtail_personalisation/wagtail_hooks.py
+++ b/src/wagtail_personalisation/wagtail_hooks.py
@@ -11,7 +11,7 @@ from wagtail.wagtailadmin.widgets import Button, ButtonWithDropdownFromHook
 from wagtail.wagtailcore import hooks
 
 from wagtail_personalisation import admin_urls
-from wagtail_personalisation.app_settings import segments_adapter
+from wagtail_personalisation.adapters import get_segment_adapter
 from wagtail_personalisation.models import PersonalisablePage, Segment
 from wagtail_personalisation.utils import impersonate_other_page
 
@@ -87,8 +87,8 @@ def segment_user(page, request, serve_args, serve_kwargs):
     :type request: django.http.HttpRequest
 
     """
-    segments_adapter.setup(request)
-    segments_adapter.refresh()
+    adapter = get_segment_adapter(request)
+    adapter.refresh()
 
 
 @hooks.register('before_serve_page')
@@ -105,8 +105,9 @@ def serve_variation(page, request, serve_args, serve_kwargs):
 
     """
     user_segments = []
+    adapter = get_segment_adapter(request)
 
-    for segment in segments_adapter.get_all_segments():
+    for segment in adapter.get_all_segments():
         try:
             user_segment = Segment.objects.get(pk=segment['id'],
                                                status='enabled')