Shopify Sub-Collections: Why They Do Not Exist and What to Do Instead

Many Shopify merchants look for a way to create sub-collections inside another collection. A common example is placing "Long Sleeve Shirts" inside a larger category such as "Men's Shirts".

Shopify does not support this type of nested structure. Collections cannot contain other collections, and there is no built-in parent and child relationship between them.

This often causes confusion for merchants who are used to ecommerce platforms that organise products using category hierarchies. Understanding how Shopify collections work helps explain why sub-collections do not exist and how stores typically organise their catalogues instead.

Does Shopify Support Sub-Collections?

No. Shopify collections cannot be nested.

Shopify uses a flat collection structure. Every collection exists independently and collections cannot contain other collections.

Products can belong to multiple collections at the same time. For example, a single product might appear in:

• Men's Shirts
• Long Sleeve Shirts
• New Arrivals
• Summer Collection

Each of these is a separate collection rather than part of a hierarchy.

How Shopify Collections Actually Work

A collection in Shopify is simply a group of products.

Collections can be created manually by selecting products or automatically using rules such as product tags, product type, vendor, or price.

Because products can appear in several collections at once, merchants can organise products in multiple ways without duplicating listings.

For example, a dress might appear in:

• Dresses
• Casual Dresses
• New In
• Under £50

These collections are not linked to each other structurally even if they represent related product groups.

Why Shopify Uses a Flat Collection Model

Shopify's collection system is designed to prioritise flexibility.

Many ecommerce platforms use strict category hierarchies where each product belongs to a defined branch of categories. In those systems, a product may sit inside a single path such as:

Shopify allows products to appear in many collections at once. This means the same product can appear in seasonal collections, promotional collections, and category collections simultaneously.

Because collections are independent groups rather than branches of a category tree, Shopify avoids the complexity of maintaining hierarchical relationships between collections.

What Merchants Usually Mean by Sub-Collections

When merchants ask for sub-collections, they are usually describing a navigation problem rather than a catalogue structure problem.

For example, a clothing store might want customers browsing the "Dresses" collection to easily move to smaller groups such as:

The merchant does not necessarily need Shopify's admin to show these collections nested under "Dresses". What they need is a clear way for customers to navigate between related collections on the storefront.

How Stores Typically Handle Collection Hierarchy

Since Shopify does not support nested collections, merchants usually create relationships between collections through navigation.

Common approaches include:

Navigation menus

Shopify menus allow nested links. A menu item such as "Dresses" can contain links to smaller collections like "Casual", "Formal", or "Evening".

This works well in header navigation but it relies on customers reopening the menu while browsing.

Filters and product tags

Shopify filters allow customers to narrow results within a collection using attributes such as size, colour, or product tags.

Filters help refine results but they function differently from category navigation. Filters adjust the current collection view rather than guiding customers to a curated collection page.

Custom theme development

Some stores add links between collections directly inside their theme templates. This approach gives full control over layout but it requires editing theme files and maintaining those links when collections change.

Collection navigation blocks

Another approach is to display links between related collections directly on the collection page.

For example, a "Dresses" collection page might show links to:

Each link leads to a separate collection page while maintaining Shopify's flat structure.

Apps such as Collection Paths focus on this approach by displaying collection navigation blocks above the product grid.

Why Collection Navigation Matters

Many customers arrive directly on collection pages rather than starting from the homepage.

Traffic from search engines, social media, or advertising often lands on a specific collection.

If the page does not provide clear links to related collections, customers may need to return to the main menu or rely on filters to continue browsing.

Displaying related collections on the page itself helps customers explore a catalogue more easily.

Frequently Asked Questions

Final Thoughts

Shopify's collection model is intentionally flexible rather than hierarchical. While the platform does not support sub-collections, merchants can still organise their catalogues effectively by linking related collections together.

Understanding how Shopify collections work helps merchants design navigation that makes browsing clear and intuitive for customers.