add-image.php

public function add_custom_html() {
            global $post;
            $product_id = $post->ID; 
            $categories = get_the_terms( $product_id, 'product_cat' );

            if( empty ($categories)){
                return;
            }
            
            //add image url in the src attribute
            $content = '<img src="sizing-mens.png" width="500" height="200">';
           
            foreach($categories as $cat){
                 if( 'men' == $cat->slug ) {
                       echo $content;
                  }
            }
}