What is an assortment in fashion retail?
The range of products a retailer or brand offers, defined by categories, styles, colours, sizes and price points.
In short
An assortment is the range of products a retailer or brand offers, defined by its categories, styles, colours, sizes and price points. Assortment planning balances breadth, meaning how many different styles are offered, against depth, meaning how many units are held of each.
How does it work in practice?
Before each season, merchandisers and buyers set an assortment plan that breaks the budget down by category, price band and delivery. They decide how many options to offer in, for example, outerwear versus knitwear, which proportion should be carry-over and which should be new, and how deep to buy into each style.
A brand's flagship store or own e-commerce may carry the full collection, while a smaller wholesale partner takes a curated selection that suits its customers and floor space. Many brands now build recommended assortments for different store types to help retailers order.
Why does it matter?
The assortment is what the customer actually sees. A well planned one:
- Reflects the target customer, store format and season
- Covers key price points without overlapping styles competing with each other
- Supports full price sell-through and limits markdowns
- Gives a coherent brand image across own retail and wholesale doors
How is AI changing it?
AI can analyse sales, returns and product attributes to show which kinds of styles perform in which stores, and suggest a localised assortment for each door or customer. In digital showrooms, these suggestions can appear as pre-filled orders that buyers then refine. Attribute tagging also makes it easier to spot gaps or duplication in a range.
Common pitfalls
- Offering too much breadth, so each style is bought too shallowly
- Copying last season's assortment without reviewing what actually sold
- Planning by style but forgetting size and colour depth
- Giving every wholesale partner the same selection regardless of their customers
Frequently asked questions
What is the difference between assortment breadth and depth?
Breadth is the number of different styles or options offered, while depth is the number of units bought per option. A broad, shallow assortment offers choice but risks stock-outs; a narrow, deep one is easier to manage but less varied.
What is assortment planning?
Assortment planning is the process of deciding which products, in what quantities, a business will offer in each channel or store for a season, based on budgets, customer insight and past performance.
