Can AI answer 'do you have this in a medium?' accurately?

Yes — Sauzy checks your live Shopify inventory at the variant level at the moment of reply, so it confirms a specific size is actually in stock rather than answering from a memory of the range.

Will automated fit advice increase my returns?

It shouldn't, if it's honest. The assistant gives real information — measurements, whether an item runs small, what the model is wearing — rather than talking a customer into a size that comes back next week.

What happens when a size is sold out?

It says so accurately instead of over-promising, and can capture the restock intent. A sold-out size is a captured lead, not a lost one — see our guide on handling out-of-stock questions.

Guide

Instagram DMs for Fashion & Clothing Brands: Sizing, Fit, and Sold-Out Variants Without Losing the Sale

20 September 2026

Clothing is arguably the most DM-heavy category on Instagram — a new drop posts, the comments fill with "size?" and "does this fit true?", and whether those turn into orders comes down almost entirely to two things: how fast someone gets an accurate answer about size, and whether the size they want is actually in stock. Both are variant-level problems, and both are exactly where manual replies fall apart at volume.

The questions that decide a fashion sale

Size availability. "Do you have this in a medium?" "Is the 10 sold out?" This is the single most common DM a clothing brand gets, and the one most often answered wrong — because it's a per-variant stock question, and it's easy to answer from a memory of the range rather than current inventory.
Fit and sizing guidance. "Does this run small?" "I'm usually a M — which size?" "What's the model wearing?" Fit anxiety is the biggest reason a keen customer doesn't order.
Fabric and care. "Is this stretchy / lined / see-through?" "What's it made of?"
Restocks. "When's the small back in?" A sold-out size is a captured intent — the customer told you exactly what they'd buy.
Styling and pairing. "What would go with this?" — a real cross-sell opening if the reply knows the rest of the range.

Sold-out variants are where the money leaks

The expensive failure in fashion isn't the sale you don't make — it's the sale you did make and then lost. Telling someone the medium is available when it sold out an hour ago produces a cancelled order, a refund, and a customer who won't ask twice. Doing it the other way — saying "sold out" when there's actually stock, because you're going from memory — quietly loses a sale nobody ever sees.

Both come from the same root cause: answering a per-variant question without checking per-variant stock at the moment of reply. We went deep on this in Handling out-of-stock questions on Instagram — it's worth reading if size questions are most of your DMs.

Fit answers need to be honest, not just fast

The temptation with fit is to reassure — "yes it'll fit!" — because it closes faster. It also drives your return rate up, which in apparel is already the category's biggest cost. A better assistant gives the real information (the measurements, whether it runs small, what the model is wearing) and lets the customer decide, rather than talking them into a size that comes back next week.

Close on the exact variant, not the product page

When someone's landed on their size, the sale is one link away — but only if that link goes to the right variant, pre-selected, not a generic product page where they have to hunt for the medium again. That friction, small as it sounds, is where a keen buyer cools off. (More on solving that hand-off in Checkout inside Instagram DMs.)

Where this gets hard by hand

A drop-day flood of "size?" comments is genuinely difficult to answer manually and accurately at the same time — the accuracy is the first thing to go when the volume spikes. That's the exact problem Sauzy solves: it answers size and stock questions from your live Shopify inventory at the variant level (so a sold-out small is never promised), links straight to the right size when someone's ready, and hands anything unusual — a complaint, a bespoke request — to you.

If you're on Shopify, the Shopify integration page covers what syncs and what stays under your control.