diff --git a/src/SnackbarItem/SnackbarItem.tsx b/src/SnackbarItem/SnackbarItem.tsx
index ab02e2bf..97ea954b 100644
--- a/src/SnackbarItem/SnackbarItem.tsx
+++ b/src/SnackbarItem/SnackbarItem.tsx
@@ -3,8 +3,8 @@ import clsx from 'clsx';
 import { withStyles, WithStyles, createStyles, Theme, emphasize } from '@material-ui/core/styles';
 import Collapse from '@material-ui/core/Collapse';
 import SnackbarContent from '../SnackbarContent';
-import { getTransitionDirection, omitNonCollapseKeys } from './SnackbarItem.util';
-import { allClasses, REASONS, SNACKBAR_INDENTS, objectMerge, DEFAULTS, transformer } from '../utils/constants';
+import { getTransitionDirection } from './SnackbarItem.util';
+import { allClasses, REASONS, objectMerge, DEFAULTS, transformer } from '../utils/constants';
 import { SharedProps, RequiredBy, TransitionHandlerProps, SnackbarProviderProps as ProviderProps } from '../index';
 import defaultIconVariants from '../utils/defaultIconVariants';
 import createChainedFunction from '../utils/createChainedFunction';
@@ -65,27 +65,6 @@ const styles = (theme: Theme) => {
             bottom: 0,
             left: 0,
         },
-        collapseContainer: {
-            [theme.breakpoints.down('xs')]: {
-                paddingLeft: theme.spacing(1),
-                paddingRight: theme.spacing(1),
-            },
-        },
-        collapseWrapper: {
-            transition: theme.transitions.create(['margin-bottom'], { easing: 'ease' }),
-            marginTop: SNACKBAR_INDENTS.snackbar.default,
-            marginBottom: SNACKBAR_INDENTS.snackbar.default,
-        },
-        collapseWrapperDense: {
-            marginTop: SNACKBAR_INDENTS.snackbar.dense,
-            marginBottom: SNACKBAR_INDENTS.snackbar.dense,
-        },
-        collapseWrapperInner: {
-            width: 'auto',
-            [theme.breakpoints.down('xs')]: {
-                width: '100%',
-            },
-        },
     });
 }
 
@@ -214,7 +193,6 @@ const SnackbarItem: React.FC<SnackbarItemProps> = ({ classes, ...props }) => {
             unmountOnExit
             timeout={175}
             in={collapsed}
-            classes={omitNonCollapseKeys(classes, dense)}
             onExited={callbacks.onExited}
         >
             {/* @ts-ignore */}
diff --git a/src/SnackbarItem/SnackbarItem.util.ts b/src/SnackbarItem/SnackbarItem.util.ts
index 4944eb72..f13493f3 100644
--- a/src/SnackbarItem/SnackbarItem.util.ts
+++ b/src/SnackbarItem/SnackbarItem.util.ts
@@ -1,7 +1,4 @@
-import clsx from 'clsx';
-import { SnackbarItemProps } from './SnackbarItem';
 import { Snack } from '../SnackbarProvider';
-import { SnackbarProviderProps } from '..';
 
 const DIRECTION = {
     right: 'left',
@@ -17,12 +14,3 @@ export const getTransitionDirection = (anchorOrigin: Snack['anchorOrigin']): Dir
     }
     return DIRECTION[anchorOrigin.vertical];
 };
-
-/**
- * Omit all class keys except what we need for collapse component
- */
-export const omitNonCollapseKeys = (classes: SnackbarItemProps['classes'], dense: SnackbarProviderProps['dense']): { container: string; wrapper: string; wrapperInner: string; } => ({
-    container: classes.collapseContainer,
-    wrapper: clsx(classes.collapseWrapper, { [classes.collapseWrapperDense]: dense }),
-    wrapperInner: classes.collapseWrapperInner,
-});