diff --git a/flask_s3.py b/flask_s3.py
index 5c366d0..4dd7d53 100644
--- a/flask_s3.py
+++ b/flask_s3.py
@@ -2,6 +2,7 @@ import os
 import logging
 import hashlib
 import json
+import re
 from collections import defaultdict
 import re
 
@@ -88,7 +89,7 @@ def _bp_static_url(blueprint):
     return u
 
 
-def _gather_files(app, hidden):
+def _gather_files(app, hidden, filepath_filter_regex=None):
     """ Gets all files in static folders and returns in dict."""
     dirs = [(six.u(app.static_folder), app.static_url_path)]
     if hasattr(app, 'blueprints'):
@@ -103,8 +104,19 @@ def _gather_files(app, hidden):
         else:
             logger.debug("Checking static folder: %s" % static_folder)
         for root, _, files in os.walk(static_folder):
+            relative_folder = re.sub(r'^\/',
+                                     '',
+                                     root.replace(static_folder, ''))
+
             files = [os.path.join(root, x) \
-                     for x in files if hidden or x[0] != '.']
+                     for x in files if (
+                         (hidden or x[0] != '.') and
+                         # Skip this file if the filter regex is
+                         # defined, and this file's path is a
+                         # negative match.
+                         (filepath_filter_regex == None or re.search(
+                             filepath_filter_regex,
+                             os.path.join(relative_folder, x))))]
             if files:
                 valid_files[(static_folder, static_url_loc)].extend(files)
     return valid_files
@@ -189,7 +201,8 @@ def _upload_files(s3, app, files_, bucket, hashes=None):
 
 
 def create_all(app, user=None, password=None, bucket_name=None,
-               location=None, include_hidden=False):
+               location=None, include_hidden=False,
+               filepath_filter_regex=None):
     """
     Uploads of the static assets associated with a Flask application to
     Amazon S3.
@@ -236,6 +249,13 @@ def create_all(app, user=None, password=None, bucket_name=None,
         files. Set this to true to force the upload of hidden files.
     :type include_hidden: `bool`
 
+    :param filepath_filter_regex: if specified, then the upload of
+        static assets is limited to only those files whose relative path
+        matches this regular expression string. For example, to only
+        upload files within the 'css' directory of your app's static
+        store, set to r'^css'.
+    :type filepath_filter_regex: `basestring` or None
+
     .. _bucket restrictions: http://docs.amazonwebservices.com/AmazonS3\
     /latest/dev/BucketRestrictions.html
 
@@ -248,7 +268,8 @@ def create_all(app, user=None, password=None, bucket_name=None,
     location = location or app.config.get('S3_REGION')
 
     # build list of static files
-    all_files = _gather_files(app, include_hidden)
+    all_files = _gather_files(app, include_hidden,
+                              filepath_filter_regex=filepath_filter_regex)
     logger.debug("All valid files: %s" % all_files)
 
     # connect to s3