diff --git a/index.js b/index.js
index 424fc2b..968aa22 100644
--- a/index.js
+++ b/index.js
@@ -8,19 +8,23 @@ var PLUGIN_NAME = 'gulp-aws';
 function s3(bucket, options) {
 
     _.defaults(options, {
-        aws_cli_path: '/usr/local/bin/aws'
+        aws_cli_path: '/usr/local/bin/aws',
+        aws_region: undefined,
+        aws_key: undefined,
+        aws_secret: undefined,
+        preseve_paths: false
     });
 
-    if (!options.aws_region) {
-        throw new PluginError(PLUGIN_NAME, '`options.aws_region` must be specified');
+    if (!options.aws_region && !options.aws_profile) {
+        throw new PluginError(PLUGIN_NAME, '`options.aws_region` or `options.aws_profile` must be specified');
     }
 
-    if (!options.aws_key) {
-        throw new PluginError(PLUGIN_NAME, '`options.aws_key` must be specified');
+    if (!options.aws_key && !options.aws_profile) {
+        throw new PluginError(PLUGIN_NAME, '`options.aws_key` or `options.aws_profile`  must be specified');
     }
 
-    if (!options.aws_secret) {
-        throw new PluginError(PLUGIN_NAME, '`options.aws_secret` must be specified');
+    if (!options.aws_secret && !options.aws_profile) {
+        throw new PluginError(PLUGIN_NAME, '`options.aws_secret` or `options.aws_profile`  must be specified');
     }
 
     return through.obj(function(file, enc, done) {
@@ -37,26 +41,39 @@ function s3(bucket, options) {
             return done();
         }
 
-        var env = {
-            AWS_DEFAULT_REGION:     options.aws_region,
-            AWS_ACCESS_KEY_ID:      options.aws_key,
-            AWS_SECRET_ACCESS_KEY:  options.aws_secret,
-        };
+        var env = {};
+
+        if (options.aws_key) {
+            evn.AWS_ACCESS_KEY_ID = options.aws_key;
+        }
+
+        if (options.aws_secret) {
+            env.AWS_SECRET_ACCESS_KEY = options.aws_secret;
+        }
+
+        if (options.aws_region) {
+            env.AWS_DEFAULT_REGION = options.aws_region;
+        }
+
+        if (options.aws_profile) {
+            env.AWS_DEFAULT_PROFILE = options.aws_profile;
+        }
 
         var filepath;
         if (options.prefix_path) {
             filepath = path.join(options.prefix_path, path.basename(file.path));
+        } else if (options.preserve_paths) {
+            filepath = file.relative;
         } else {
             filepath = path.basename(file.path);
         }
 
-
         var command = [
             options.aws_cli_path,
             's3',
             'cp',
             file.path,
-            's3://' + bucket + '/' + filepath
+            's3://' + bucket + '/' + filepath,
         ];
 
         require('child_process').exec(command.join(' '), { env: env }, function(error, stdout, stderr){