How to Add a Size Chart to Shopify (3 Ways)
Theme section, a size chart app, or a free chart image from Sizely. Three ways to add a size chart to Shopify, and what each one takes and costs.
Jason
July 11, 2026
Copy this return policy template for your clothing store and adapt it, plus the window, free-return, and exchange-first settings that cut wrong-size returns.
Written by
Jason
Published on
July 11, 2026

Short answer
A clear clothing return policy tells shoppers exactly what they can send back, by when, and what they get in return. Cover these five things and you have most of a policy:
A return policy is the last thing a shopper reads before they buy and the first thing they read when something goes wrong. Get it right and it does two jobs: it reassures the buyer on the fence, and it steers a wrong order toward an exchange instead of a refund. The National Retail Federation put the online return rate at 19.3% in 2025, so for a clothing store this is a slice of every week, not an edge case. Below is a full template to copy, the decision behind each clause, and the settings that keep returns down.
Every clothing return policy comes down to five decisions. Make them on purpose, not by copying whatever the last store you shopped at did.
The template below sets a workable default for each. Paste it, swap the bracketed parts, then tune the numbers in the settings section.
Copy the block below into your store's returns page and replace everything in brackets. It is written in plain, customer-facing language.
[Store name] returns and exchanges
We want you to love what you ordered. If the fit or the item is not right, here is how to send it back.
Return window. You can return most items within [30] days of delivery. Start your return inside that window and ship it back within [7] days of getting your return label.
Condition. Items must come back unworn, unwashed, and free of marks, odors, and pet hair, with all original tags still attached. We cannot accept anything that looks worn, washed, or altered.
Check the size chart first. Most returns are a sizing miss. Please check the size chart on the product page before you buy, and if you are between sizes, the fit notes on each listing tell you which way to go. A quick measurement now saves a return later.
Exchanges. For a different size or color, choose an exchange and we will ship the replacement [for free] as soon as your return is on its way. An exchange is the fastest way to get the right fit.
Refunds. For your money back, we refund your original payment method once we receive and inspect your return, within [5 to 10] business days. Your bank may take a few more days to post it.
Return shipping. Exchanges ship free. For a refund, we deduct a flat $[X] return-label fee from the amount we send back. You can also drop off returns at [location] at no cost.
Final sale. Items marked final sale cannot be returned or exchanged. This includes [clearance items, underwear, swimwear, and pierced jewelry], and we mark them clearly on the product page.
Damaged or wrong item. If your order arrives damaged, or you received the wrong item, contact us at [returns@yourstore.com] within [7] days with a photo. We will send a replacement or a full refund, shipping included, at no cost to you.
How to start a return. Email [returns@yourstore.com] with your order number, or use our returns portal at [yourstore.com/returns]. We will reply with a prepaid label and next steps within [1 business day].
The template ships with safe defaults. Tuning them is the real work, because every clause trades conversion today against returns later. Here are the three that move the most money.
A longer window is a conversion tool. A 30 or 60-day return makes a hesitant shopper more likely to buy, because the risk of getting stuck with the wrong thing feels smaller. The cost is wardrobing, wearing an item once to an event and sending it back inside the window. For most clothing stores, 30 days is the balance point: long enough to reassure, short enough to limit abuse. Stretch it around the holidays if you sell gifts, and always state the window in days from delivery, not from the order date.
Free returns are the strongest conversion lever here, and the most expensive one. They also quietly pay shoppers to bracket, ordering the same style in two or three sizes to keep one and return the rest. Narvar found 58% of shoppers have bracketed a purchase (2021), so this is mainstream behavior, not a fringe case. The middle path most clothing stores settle on: free exchanges, because you keep the sale, and a paid or store-credit refund, because a cash refund is the outcome you most want to discourage.
The single most useful move in a returns policy is to make the exchange the easy default and the refund the extra step. A refund ends the sale, and the shopper often rebuys the right size from a competitor. An exchange keeps the revenue and costs you only the shipping. Word your policy and your returns page so the exchange is the first, most obvious choice, with a straight refund one click further down. That one setting turns lost sales into kept ones, which is why exchange-first belongs near the top of your returns strategy, not the bottom.
Every clause above deals with a return after it happens. The best clause stops it before it starts. Coresight Research tied 53% of apparel returns to size and fit in 2023, which means your biggest lever is not in the returns process at all. It is upstream, on the product page, before the order is placed.
Two things move that number. A size chart built on real flat measurements, chest, waist, length, in both inches and centimeters, lets a shopper check against a garment they already own instead of trusting a letter on a tag. You can build one in about a minute with the Sizely size chart maker and paste it on every listing. For shoppers who will not dig out a tape measure, a size recommender does the math from a few answers and returns a single size on the product page. Sizely Fit Finder sizes against your own charts, not a generic average.
Then close the loop in the policy. The "check the size chart first" line in the template is not filler: it sets the expectation that fit is knowable before checkout, and gives you a fair reason to hold a firmer line on planned returns. Fewer sizing misses is the cheapest returns reduction there is.
This template is a starting point, not legal advice. Return rules are shaped by consumer-protection law, and that law varies by country and, in the United States, by state. Some let you set your own terms if you post them clearly, some require you to accept returns under certain conditions, and some regulate how fast a refund must be issued. In the EU, shoppers generally have a 14-day right to withdraw from most online purchases, which sits on top of any voluntary return window you offer. Before you publish, have a lawyer or a qualified advisor review your policy for every market you sell into.
At a minimum: the return window, the condition items must come back in, whether tags have to be attached, what the shopper gets back (refund, exchange, or store credit), who pays return shipping, your final-sale exclusions, how to start a return, and how you handle damaged or wrong items. The template above covers all of these with defaults you can adjust.
Fourteen to 30 days suits most clothing stores. A longer window reassures buyers and can lift conversion, but it leaves more room for wardrobing, wearing an item once and returning it. Thirty days is a common balance. Extend it for the holidays if you sell gifts, and say so plainly.
Free returns lift conversion, and they also make bracketing cheaper for the shopper. A middle path fits most clothing stores: free exchanges so a wrong size gets swapped, paid or store-credit refunds, and a straight cash refund available but not the default. Change one setting at a time and watch your return rate.
In many markets you can sell items as final sale as long as you disclose it clearly before checkout, so the shopper agrees to it up front. That said, the rules vary by country and by state, and some consumer-protection laws limit what you can exclude, such as the EU right to withdraw from most online orders. Treat final sale as a starting point, disclose it plainly, and have a professional confirm it holds where you sell.
The cheapest return is the one that never happens. Put real measurements on every listing with the Sizely size chart maker, or add Fit Finder to your product pages so shoppers get their size before checkout.

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