Add WooCommerce product meta to the shop loop

wc-add-shop-loop.php

/**
 * Will add information to the shop loop above the "Add to cart" button
 * This example will use post meta (custom fields) and display them if set
 * Tutorial: http://www.skyverge.com/blog/add-information-to-woocommerce-shop-page/
**/

function skyverge_shop_display_post_meta() {

	global $product;
	
	// replace the custom field name with your own
	$location = get_post_meta( $product->id, 'location', true );
	$points = get_post_meta( $product->id, 'points', true );
	
	// (optional) cleans up custom field names: replace underscores with spaces
	$location = str_replace( '_', ' ', $location );

  // Add these fields to the shop loop if set
	if ( ! empty( $location ) ) {
		echo '<div class="product-meta"><span class="product-meta-title">Location:</span> ' . ucwords( $location ) . '</div>';
	}

	if ( ! empty( $points ) ) {
		echo '<div class="product-meta"><span class="product-meta-title">SkyPoints:</span> ' . $points . '</div>';
	}
}
add_action( 'woocommerce_after_shop_loop_item', 'skyverge_shop_display_post_meta', 9 );

more versatile implementation =>
function get_product_meta_value($meta_identifier) {
global $product;
$meta_value = get_post_meta( $product->id, $meta_identifier, true );
return $meta_value;
}