Аналогичные товары.
{% if product.similar_products.size > 0 %}
<div class="similar_products">
<div class="similar_products-title">
Аналогичные товары
</div>
<div class="similar_products-slider">
{% for product in product.similar_products %}
<div class="product_preview">
<div class="product_preview-img">
<a href="{{ product.url }}">
<img src="{{ product.first_image.large_url }}" alt="{{ product.title }}" />
</a>
</div>
<div class="product_preview-price">
{{ product.price | money }}
</div>
<div class="product_preview-title">
<a href="{{ product.url }}">
{{ product.title }}
</a>
</div>
</div>
{% endfor %}
</div>
</div>
{% endif %}