diff --git a/src/mixins/index.js b/src/mixins/index.js
index 2802fb9f091e27..31b2851d82f90d 100644
--- a/src/mixins/index.js
+++ b/src/mixins/index.js
@@ -1,16 +1,13 @@
 import ClickAwayable from './click-awayable';
 import WindowListenable from './window-listenable';
 import StylePropable from './style-propable';
-import StyleResizable from './style-resizable';
 
 export {ClickAwayable};
 export {WindowListenable};
 export {StylePropable};
-export {StyleResizable};
 
 export default {
   ClickAwayable,
   WindowListenable,
   StylePropable,
-  StyleResizable,
 };
diff --git a/src/mixins/style-resizable.js b/src/mixins/style-resizable.js
deleted file mode 100644
index 8cbb12097f5886..00000000000000
--- a/src/mixins/style-resizable.js
+++ /dev/null
@@ -1,53 +0,0 @@
-import Events from '../utils/events';
-
-const Sizes = {
-  SMALL: 1,
-  MEDIUM: 2,
-  LARGE: 3,
-};
-
-export default {
-
-  statics: {
-    Sizes: Sizes,
-  },
-
-  getInitialState() {
-    return {
-      deviceSize: Sizes.SMALL,
-    };
-  },
-
-  componentDidMount() {
-    this._updateDeviceSize();
-    if (!this.manuallyBindResize) this._bindResize();
-  },
-
-  componentWillUnmount() {
-    this._unbindResize();
-  },
-
-  isDeviceSize(desiredSize) {
-    return this.state.deviceSize >= desiredSize;
-  },
-
-  _updateDeviceSize() {
-    const width = window.innerWidth;
-
-    if (width >= 992) {
-      this.setState({deviceSize: Sizes.LARGE});
-    } else if (width >= 768) {
-      this.setState({deviceSize: Sizes.MEDIUM});
-    } else { // width < 768
-      this.setState({deviceSize: Sizes.SMALL});
-    }
-  },
-
-  _bindResize() {
-    Events.on(window, 'resize', this._updateDeviceSize);
-  },
-
-  _unbindResize() {
-    Events.off(window, 'resize', this._updateDeviceSize);
-  },
-};
diff --git a/src/snackbar.jsx b/src/snackbar.jsx
index 42418f28e1edc1..7fabcd5e46c2bd 100644
--- a/src/snackbar.jsx
+++ b/src/snackbar.jsx
@@ -6,7 +6,6 @@ import FlatButton from './flat-button';
 import DefaultRawTheme from './styles/raw-themes/light-raw-theme';
 import ThemeManager from './styles/theme-manager';
 import ContextPure from './mixins/context-pure';
-import StyleResizable from './mixins/style-resizable';
 import warning from 'warning';
 import deprecated from './utils/deprecatedPropType';
 
@@ -102,7 +101,6 @@ const Snackbar = React.createClass({
 
   mixins: [
     StylePropable,
-    StyleResizable,
     ClickAwayable,
     ContextPure,
   ],
@@ -236,7 +234,7 @@ const Snackbar = React.createClass({
       actionColor,
     } = this.constructor.getRelevantContextKeys(this.state.muiTheme);
 
-    const isSmall = this.state.deviceSize === this.constructor.Sizes.SMALL;
+    const isSmall = window.innerWidth < 768;
 
     const styles = {
       root: {