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How to assist customers with size guides for fashion products?

Chatref Team2 min read / Updated June 16, 2026

For size guide support for fashion, build a reliable size guide into your Chatref knowledge base. Let AI agents instantly answer sizing questions from your own charts, and use custom actions to gather details and recommend the perfect size. Start with $50 free credit - no subscription required.

Build a Comprehensive Size Guide Knowledge Base

Upload all your size charts, measurement instructions, and fit notes to Chatref. Add PDFs, provide URLs to your size guide pages, or paste plain text. The knowledge-base feature trains your AI on your exact product sizing - no generic web guesses. For fashion, include international size conversions, detailed garment measurements (chest, waist, hip), and any “runs small/true to size” annotations per style. This becomes the single source of truth for every sizing answer.

Automate Sizing Answers with Grounded AI Agents

Once your knowledge base is loaded, your AI agents handle sizing questions 24/7 right inside your website widget. Shoppers ask “What size should I get?” and the agent replies with your specific chart data and fit advice, grounded in your content. It speaks in your brand voice, handles follow-ups naturally, and never makes up measurements. This deflects repetitive “what size” tickets and lets your team focus on high-value queries.

Use Custom Actions to Collect Fit Details

Custom actions collect sizing-relevant details - height, weight, usual size, fit preference - within the chat. For example, an agent can ask “What’s your typical size in jeans?” then map the answer to your chart and suggest the best match. You can also trigger actions to check real-time inventory for size availability or generate a personalized size recommendation. All data flows into the conversation inbox, so if a human steps in they have full context.

FAQ

How to explain size guides effectively?

Use simple, numeric measurements alongside visual guides. Convert international sizes (US, UK, EU) and clearly mark if a style runs small or large. Provide measuring instructions (e.g., “measure around the fullest part of your bust”). Your Chatref AI agent displays this info from your knowledge base in a friendly, step‑by‑step manner.

What are common sizing questions?

Shoppers regularly ask: “I’m between sizes – which one to pick?”, “What size would fit my measurements?”, “Does this item stretch?”, and “Do you have a size chart for this specific product?” Your agents pull the relevant chart and fit advice from your knowledge base, reducing uncertainty and returns.

How to handle size‑related complaints?

Acknowledge the frustration and use the order details to cross‑check what was sent versus the size chart. Offer a straightforward exchange or return policy explanation. With Chatref, agents can escalate to a human seamlessly while showing the sizing data the customer saw, so your support team can resolve the issue quickly and retain the customer.

Put this into practice

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