Shopify how-to June 28, 2026 3 min read
How to Add a Size Chart on the Shopify Cart Page
'Check size' next to each line. Last-chance size verification before checkout.
The Cart-Page Pattern
A small "Size guide" link beside each cart line. Click → popup opens with that product's size chart. Shopper confirms or edits the size. Updates cart and proceeds.
Why It Works
Many shoppers select size impulsively on the product page, then have second thoughts at cart. Without a quick way to verify, they either: (a) leave to re-check (lose 30% to abandonment) or (b) finalize an incorrect size (return). Cart-page link prevents both.
Setup
Theme editor → cart template → add Tailor Size Guide app block. Choose "cart line item" placement. Save.
FAQs
Size chart on cart page?
Yes — small inline link.
Returns impact?
5-10% reduction.
Last-chance size verification
Tailor Size Guide places size checks at every step of the funnel.