Size Guide
Size-related returns account for 30% of all eCommerce returns. A proper size guide cuts that number in half.
When customers are not sure about sizing, they do one of two things: buy two sizes and return one, or leave without buying at all. Both outcomes are expensive. Returns cost you shipping, processing, and restocking. Abandonment costs you the sale entirely.
A size guide is the fix. Not a generic S/M/L chart — a detailed guide with measurements, fit descriptions, model information, and ideally a recommendation quiz. Brands with proper size guides reduce size-related returns by 20-30% and improve conversion because uncertain shoppers gain confidence.
30%
Returns From Sizing
20-30%
Return Reduction
150+
Stores Optimised
$23M+
Revenue Driven
How to fix this — step by step
Create measurement-based size charts
Not just S, M, L — actual measurements in inches and centimetres. Chest, waist, hip, inseam, and length for each size. Customers with a tape measure should be able to find their exact size.
Add fit descriptions
"True to size." "Runs small — size up." "Relaxed fit — size down for fitted." These simple notes prevent 50% of size-related returns because customers know what to expect.
Show model measurements
Model is 5'9", wearing size M, measurements 34-28-36. This gives customers a reference point beyond abstract numbers.
Place the guide on the product page
Not a separate page. A modal or accordion on the product page itself. If customers have to navigate away to find sizing, most will not bother. Inline access reduces friction.
Consider a fit quiz
Kiwi Sizing, True Fit, or custom quiz recommending a size based on height, weight, and fit preference. Quiz-recommended sizes see 50% fewer size-related returns.
Want us to handle this?
Size guides are a conversion and return reduction tool. Properly implemented, they pay for themselves within weeks through fewer returns and higher conversion from uncertain shoppers.
We build Shopify product page optimisations including size guides, metafields, and UX improvements.
Questions our best clients asked first
Reduce returns. Increase confidence. Sell more.
Book a call and we will help you build size guides that reduce returns and improve conversion on your Shopify store.
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