diff --git a/packages/pigment-css-react/package.json b/packages/pigment-css-react/package.json
index 4c5b47ed..17babafd 100644
--- a/packages/pigment-css-react/package.json
+++ b/packages/pigment-css-react/package.json
@@ -55,6 +55,7 @@
   },
   "devDependencies": {
     "@babel/plugin-syntax-jsx": "^7.24.1",
+    "@mui/types": "7.2.14",
     "@types/babel__core": "^7.20.5",
     "@types/babel__helper-module-imports": "^7.18.3",
     "@types/babel__helper-plugin-utils": "^7.10.3",
@@ -148,6 +149,15 @@
       },
       "require": "./build/RtlProvider.js",
       "default": "./build/RtlProvider.js"
+    },
+    "./Stack": {
+      "types": "./build/Stack.d.ts",
+      "import": {
+        "types": "./build/Stack.d.mts",
+        "default": "./build/Stack.mjs"
+      },
+      "require": "./build/Stack.js",
+      "default": "./build/Stack.js"
     }
   },
   "nx": {
diff --git a/packages/pigment-css-react/src/Stack.d.ts b/packages/pigment-css-react/src/Stack.d.ts
new file mode 100644
index 00000000..4b185fa4
--- /dev/null
+++ b/packages/pigment-css-react/src/Stack.d.ts
@@ -0,0 +1,20 @@
+import * as CSS from 'csstype';
+
+import { Breakpoint } from './base';
+import { PolymorphicComponent } from './Box';
+
+type CssProperty<T> = T | Array<T> | Partial<Record<Breakpoint, T>>;
+
+type StackBaseProps = {
+  display?: CssProperty<'flex' | 'inline-flex'>;
+  spacing?: CssProperty<number | string>;
+  direction?: CssProperty<CSS.StandardLonghandProperties['flexDirection']>;
+  justifyContent?: CssProperty<CSS.StandardLonghandProperties['justifyContent']>;
+  alignItems?: CssProperty<CSS.StandardLonghandProperties['alignItems']>;
+  divider?: React.ReactNode;
+  className?: string;
+};
+
+declare const Stack: PolymorphicComponent<StackBaseProps>;
+
+export default Stack;
diff --git a/packages/pigment-css-react/src/Stack.jsx b/packages/pigment-css-react/src/Stack.jsx
new file mode 100644
index 00000000..f9f57fdb
--- /dev/null
+++ b/packages/pigment-css-react/src/Stack.jsx
@@ -0,0 +1,50 @@
+import clsx from 'clsx';
+import * as React from 'react';
+
+import { stackAtomics } from './baseAtomics';
+
+const Stack = React.forwardRef(function Stack(
+  {
+    children,
+    spacing = 0,
+    style,
+    className,
+    display = 'flex',
+    component = 'div',
+    direction = 'column',
+    alignItems,
+    justifyContent,
+    ...rest
+  },
+  ref,
+) {
+  const stackAtomicsObj = {
+    display,
+    direction,
+  };
+  if (spacing) {
+    stackAtomicsObj.spacing = spacing;
+  }
+  if (alignItems) {
+    stackAtomicsObj.alignItems = alignItems;
+  }
+  if (justifyContent) {
+    stackAtomicsObj.justifyContent = justifyContent;
+  }
+  const stackClasses = stackAtomics(stackAtomicsObj);
+  const Component = component;
+  return (
+    <Component
+      ref={ref}
+      className={clsx(stackClasses.className, className)}
+      style={{ ...style, ...stackClasses.style }}
+      {...rest}
+    >
+      {children}
+    </Component>
+  );
+});
+
+Stack.displayName = 'Stack';
+
+export default Stack;
diff --git a/packages/pigment-css-react/src/base.d.ts b/packages/pigment-css-react/src/base.ts
similarity index 90%
rename from packages/pigment-css-react/src/base.d.ts
rename to packages/pigment-css-react/src/base.ts
index c524bd4a..1451eef2 100644
--- a/packages/pigment-css-react/src/base.d.ts
+++ b/packages/pigment-css-react/src/base.ts
@@ -1,4 +1,5 @@
 import type * as CSS from 'csstype';
+import { OverridableStringUnion } from '@mui/types';
 
 export type CSSProperties = CSS.PropertiesFallback<number | string>;
 
@@ -64,3 +65,10 @@ export interface PolymorphicComponent<SxProp, BaseProps extends BaseDefaultProps
     props: PolymorphicComponentProps<SxProp, BaseProps, AsTarget>,
   ): JSX.Element;
 }
+
+export interface BreakpointOverrides {}
+
+export type Breakpoint = OverridableStringUnion<
+  'xs' | 'sm' | 'md' | 'lg' | 'xl',
+  BreakpointOverrides
+>;
diff --git a/packages/pigment-css-react/src/baseAtomics.js b/packages/pigment-css-react/src/baseAtomics.js
new file mode 100644
index 00000000..24277f10
--- /dev/null
+++ b/packages/pigment-css-react/src/baseAtomics.js
@@ -0,0 +1,43 @@
+import { generateAtomics } from './generateAtomics';
+
+export const stackAtomics = generateAtomics(({ theme }) => ({
+  conditions: Object.keys(theme.breakpoints.values).reduce((acc, breakpoint) => {
+    acc[breakpoint] = `@media (min-width: ${theme.breakpoints.values[breakpoint]}${
+      theme.breakpoints.unit ?? 'px'
+    })`;
+    return acc;
+  }, {}),
+  defaultCondition: theme.defaultBreakpoint ?? 'xs',
+  properties: {
+    display: ['flex', 'inline-flex'],
+    flexDirection: ['column', 'column-reverse', 'row', 'row-reverse'],
+    justifyContent: [
+      'end',
+      'start',
+      'flex-end',
+      'flex-start',
+      'center',
+      'space-between',
+      'space-around',
+      'space-evenly',
+    ],
+    alignItems: [
+      'center',
+      'end',
+      'flex-end',
+      'flex-start',
+      'self-end',
+      'self-start',
+      'start',
+      'baseline',
+      'normal',
+      'stretch',
+    ],
+    gap: ['--Stack-gap'],
+  },
+  shorthands: {
+    direction: ['flexDirection'],
+    spacing: ['gap'],
+  },
+  multiplier: 8,
+}));
diff --git a/packages/pigment-css-react/src/generateAtomics.js b/packages/pigment-css-react/src/generateAtomics.js
index 442e1f67..dabbb6d8 100644
--- a/packages/pigment-css-react/src/generateAtomics.js
+++ b/packages/pigment-css-react/src/generateAtomics.js
@@ -11,18 +11,69 @@ export function generateAtomics() {
  * @property {Object.<string, Object.<string, Object.<string, string>>>} styles
  * @property {Object.<string, string[]>} shorthands
  * @property {string[]} conditions
+ * @property {string} defaultCondition
+ * @property {string[]} unitless
+ * @property {string} multiplier
  */
 
 /**
  * @param {RuntimeConfig} runtimeConfig
  */
-export function atomics({ styles, shorthands, conditions }) {
-  function addStyles(cssProperty, values, classes) {
+export function atomics({
+  styles,
+  defaultCondition,
+  shorthands,
+  conditions,
+  unitless,
+  multiplier = 1,
+}) {
+  function addStyles(cssProperty, values, classes, inlineStyle) {
     const styleClasses = styles[cssProperty];
     if (!styleClasses) {
       return;
     }
-    if (typeof values === 'string') {
+    // dynamic values
+    if (!(values in styleClasses)) {
+      const keys = Object.keys(styleClasses);
+      if (keys.length !== 1) {
+        return;
+      }
+      const key = keys[0];
+      if (typeof values === 'string' || typeof values === 'number') {
+        const value = typeof values === 'number' ? values * multiplier : values;
+        classes.push(styleClasses[key].$$default);
+        inlineStyle[`${key}_${defaultCondition}`] = unitless.includes(cssProperty)
+          ? value
+          : `${value}px`;
+      } else if (Array.isArray(values)) {
+        values.forEach((itemValue, index) => {
+          const breakpoint = conditions[index];
+          classes.push(styleClasses[key][breakpoint]);
+          const value = typeof itemValue === 'number' ? itemValue * multiplier : itemValue;
+          inlineStyle[`${key}_${breakpoint}`] = unitless.includes(cssProperty)
+            ? value
+            : `${value}px`;
+        });
+      } else {
+        Object.keys(values).forEach((condition) => {
+          const propertyClasses = styleClasses[key];
+          if (!propertyClasses) {
+            return;
+          }
+          console.log(propertyClasses);
+          classes.push(propertyClasses[condition]);
+          const value =
+            typeof values[condition] === 'number'
+              ? values[condition] * multiplier
+              : values[condition];
+          inlineStyle[`${key}_${condition}`] = unitless.includes(cssProperty)
+            ? value
+            : `${value}px`;
+        });
+      }
+      return;
+    }
+    if (typeof values === 'string' || typeof values === 'number') {
       classes.push(styleClasses[values].$$default);
     } else if (Array.isArray(values)) {
       values.forEach((value, index) => {
@@ -41,7 +92,8 @@ export function atomics({ styles, shorthands, conditions }) {
 
   function generateClass(props) {
     const classes = [];
-    const runtimeStyles = { ...props };
+    const inlineStyle = {};
+    const runtimeStyles = props;
     Object.keys(runtimeStyles).forEach((cssProperty) => {
       const values = runtimeStyles[cssProperty];
       if (cssProperty in shorthands) {
@@ -50,14 +102,15 @@ export function atomics({ styles, shorthands, conditions }) {
           return;
         }
         configShorthands.forEach((shorthand) => {
-          addStyles(shorthand, values, classes);
+          addStyles(shorthand, values, classes, inlineStyle);
         });
       } else {
-        addStyles(cssProperty, values, classes);
+        addStyles(cssProperty, values, classes, inlineStyle);
       }
     });
     return {
       className: cx(Array.from(new Set(classes))),
+      style: inlineStyle,
     };
   }
   return generateClass;
diff --git a/packages/pigment-css-react/src/index.ts b/packages/pigment-css-react/src/index.ts
index 2b27d96f..819aa904 100644
--- a/packages/pigment-css-react/src/index.ts
+++ b/packages/pigment-css-react/src/index.ts
@@ -1,3 +1,4 @@
+export * from './base';
 export { default as styled, type StyledComponent } from './styled';
 export { default as sx } from './sx';
 export { default as keyframes } from './keyframes';
diff --git a/packages/pigment-css-react/src/utils/convertAtomicsToCss.ts b/packages/pigment-css-react/src/utils/convertAtomicsToCss.ts
index 1afdf7c6..d1ca46fe 100644
--- a/packages/pigment-css-react/src/utils/convertAtomicsToCss.ts
+++ b/packages/pigment-css-react/src/utils/convertAtomicsToCss.ts
@@ -7,12 +7,17 @@ export type Atomics = {
     [key: string]: string[];
   };
   shorthands: Record<string, string[]>;
+  unitless: string[];
+  multiplier?: number;
 };
 
 export type RuntimeConfig = {
   conditions: string[];
   styles: Record<string, Record<string, Record<string, string>>>;
   shorthands: Atomics['shorthands'];
+  defaultCondition: string;
+  unitless: string[];
+  multiplier?: number;
 };
 
 function getClassName(...items: string[]) {
@@ -20,7 +25,14 @@ function getClassName(...items: string[]) {
 }
 
 export function convertAtomicsToCss(
-  { conditions = {}, defaultCondition, properties, shorthands = {} }: Atomics,
+  {
+    conditions = {},
+    defaultCondition,
+    properties,
+    shorthands = {},
+    unitless = [],
+    multiplier = undefined,
+  }: Atomics,
   mainClassName: string,
   isGlobal = false,
   debug = false,
@@ -30,6 +42,9 @@ export function convertAtomicsToCss(
     styles: {},
     shorthands,
     conditions: Object.keys(conditions),
+    defaultCondition,
+    unitless,
+    multiplier,
   };
   let count = 1;
   function getCount() {
@@ -46,6 +61,9 @@ export function convertAtomicsToCss(
   Object.entries(conditions).forEach(([conditionName, mediaQueryStr]) => {
     Object.entries(properties).forEach(([cssPropertyName, propertyValues]) => {
       propertyValues.forEach((propertyValue) => {
+        const propValue = propertyValue.startsWith('--')
+          ? cssesc(`var(${propertyValue}_${conditionName})`)
+          : propertyValue;
         const className =
           isGlobal || debug
             ? getClassName(
@@ -60,7 +78,7 @@ export function convertAtomicsToCss(
           classes.push({
             className,
             css: {
-              [cssPropertyName]: propertyValue,
+              [cssPropertyName]: propValue,
             },
           });
         } else {
@@ -68,7 +86,7 @@ export function convertAtomicsToCss(
             className,
             css: {
               [mediaQueryStr]: {
-                [cssPropertyName]: propertyValue,
+                [cssPropertyName]: propValue,
               },
             },
           });
diff --git a/packages/pigment-css-react/tests/Stack.spec.tsx b/packages/pigment-css-react/tests/Stack.spec.tsx
new file mode 100644
index 00000000..92929c27
--- /dev/null
+++ b/packages/pigment-css-react/tests/Stack.spec.tsx
@@ -0,0 +1,13 @@
+import * as React from 'react';
+import Stack from '../src/Stack';
+
+<Stack
+  display={{
+    xs: 'flex',
+    xl: 'inline-flex',
+  }}
+  direction="column"
+/>;
+
+// @ts-expect-error
+<Stack display={{ ml: 'block' }} divider={<h1>Hello</h1>} />;
diff --git a/packages/pigment-css-react/tsconfig.json b/packages/pigment-css-react/tsconfig.json
index 8ac34324..3e0efa80 100644
--- a/packages/pigment-css-react/tsconfig.json
+++ b/packages/pigment-css-react/tsconfig.json
@@ -7,7 +7,8 @@
     "composite": true,
     "noEmit": false,
     "resolveJsonModule": true,
-    "types": ["node", "mocha"]
+    "types": ["node", "mocha"],
+    "jsx": "react-jsx"
   },
   "include": ["src/**/*.tsx", "src/**/*.js", "src/**/*.ts"],
   "exclude": ["./tsup.config.ts", "src/**/*.d.ts"]
diff --git a/packages/pigment-css-react/tsup.config.ts b/packages/pigment-css-react/tsup.config.ts
index 3c238b65..8d940a3d 100644
--- a/packages/pigment-css-react/tsup.config.ts
+++ b/packages/pigment-css-react/tsup.config.ts
@@ -18,7 +18,7 @@ const baseConfig: Options = {
   external,
 };
 
-const BASE_FILES = ['index.ts', 'theme.ts', 'Box.jsx', 'RtlProvider.tsx'];
+const BASE_FILES = ['index.ts', 'theme.ts', 'Box.jsx', 'RtlProvider.tsx', 'Stack.jsx'];
 
 export default defineConfig([
   {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 76cacd84..34036798 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -482,6 +482,9 @@ importers:
       '@babel/plugin-syntax-jsx':
         specifier: ^7.24.1
         version: 7.24.1(@babel/core@7.24.4)
+      '@mui/types':
+        specifier: 7.2.14
+        version: 7.2.14(@types/react@18.2.75)
       '@types/babel__core':
         specifier: ^7.20.5
         version: 7.20.5
@@ -3325,7 +3328,6 @@ packages:
         optional: true
     dependencies:
       '@types/react': 18.2.75
-    dev: false
 
   /@mui/utils@6.0.0-alpha.8(@types/react@18.2.75)(react@18.2.0):
     resolution: {integrity: sha512-X5lg0bh8B6uYt/0HXV+t82HXLTOVFEKcIBmIbJ5El1h9ykXaRTenr8mORxt5UC5w9DHFhkRoI8XiM5qyDuSJVw==}