Echo specific Product Attributes and Meta Data in WooCommerce Cart
<p><strong>Update (related to author comments):</strong></p>

<p>I would like to customize WooCommerce cart.php to display some meta-data that are working just fine on the product page using <strong><a href="https://www.themepunch.com/essgrid-doc/essential-grid-documentation/" rel="noreferrer">Essential Grid premium plugin</a></strong>. </p>

<p>I would like to display some product attributes fields and also some custom meta fields that I have created with the <strong>meta field creator</strong> of <a href="https://www.themepunch.com/essgrid-doc/essential-grid-documentation/" rel="noreferrer"><strong>Essential Grid</strong></a> plugin.</p>

<p>For testing, I'm using <strong><code>'Height'</code></strong> attribute (so <strong><code>'pa_height'</code></strong>) and the custom field <strong><code>'Age'</code></strong> which slug is <strong><code>'eg-age-cal'</code></strong>.</p>

<p>Currently, I have tried using the following:</p>

<pre><code>&lt;?php echo get_post_meta($product_id, 'pa_height', true );?&gt;
</code></pre>

<p>And also:</p>

<pre><code>&lt;?php echo get_post_meta($product_id, 'eg-age-cal', true );?&gt;
</code></pre>

<p><strong>But these does not seem to work.</strong> </p>

<p>I have managed to get the code to work using: </p>

<pre><code>&lt;?php echo get_post_meta($product_id, '_regular_price', true );?&gt;
</code></pre>

<p>So I know the code is working. </p>

<p>I just need help working out, how can I get the values from these Custom Attribute and Custom Field.</p>

<p>Thanks.</p>