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Buy Used Kids Shoes Online: How to Get the Right Fit for Less

By KidResize Team · Published on November 12, 2026

To buy used kids shoes online with confidence, start with your child's measured shoe size, filter by that exact size (or one size up for room to grow), study the photos of the soles, insoles, and toe area, read the condition grade, and check the full price with shipping before you pay. KidResize is a peer-to-peer marketplace where parents sell pre-loved children's clothing and shoes by exact size, from Shoe 0 through Shoe 13 and Shoe 1Y through Shoe 7Y, with tracked USPS shipping, Stripe-secured checkout, and seller payouts held until 3 days after delivery. Shop pre-loved kids shoes on KidResize.

Kids outgrow shoes at a pace that can feel impossible to keep up with. A pair of sneakers that fit perfectly in September can pinch by spring, often long before the shoes show real wear. That is exactly why buying used makes so much sense: many kids shoes are outgrown, not worn out. With a little know-how, you can find sneakers, sandals, boots, and dress shoes in great shape for a fraction of the cost of new. This guide walks through sizing, what to look for in a listing, how to judge condition from photos, what you will pay, and how KidResize helps protect your order.

Why buy used kids shoes?

Buying pre-loved shoes is a practical choice for many families:

If you are also stocking up on clothing, our guide on how to buy used kids clothes online covers sizing and shopping tips for apparel.

Step 1: Measure your child's feet first

The most common mistake when buying kids shoes online is guessing the size from the last pair. Brands run differently, and a child may have grown since you last checked. Before you shop:

  1. Measure in the afternoon or evening, when feet are naturally a little larger.
  2. Have your child stand on a sheet of paper with their full weight on both feet.
  3. Mark the back of the heel and the tip of the longest toe, then measure the distance.
  4. Measure both feet. Use the larger one.
  5. Add a little growing room. Many parents look for shoes with roughly a thumb's width of space beyond the longest toe, but follow your child's comfort and your pediatrician's guidance.

Keep that measurement handy. It is far more reliable than a size printed on an old pair, especially when comparing brands.

Step 2: Shop by exact size on KidResize

KidResize organizes listings by size so you are not scrolling through pairs your child cannot wear. Shoe sizes run from Shoe 0 through Shoe 13 for babies, toddlers, and little kids, and Shoe 1Y through Shoe 7Y for big kids.

To narrow your search:

For a broader look at how resale sizes map to ages and growth stages, see our kids clothing sizes resale guide.

Step 3: Read the listing like a pro

KidResize listings are photographed by the parents selling them, so the photos tell you a lot. A strong shoe listing usually shows:

Read the description carefully. Good sellers mention whether a brand runs large or small and sometimes include the insole length. Compare the insole length, if listed, with your child's foot measurement plus growing room.

Step 4: Judge condition carefully

Condition matters more for shoes than for most clothing, because shoes shape themselves to the feet that wear them. Here is what to look for:

Soles and tread

Look for even wear across both shoes. Heavy wear on one edge can mean the shoes have molded to the previous wearer's walk. Plenty of tread is a good sign, especially for active kids and slippery seasons.

Insoles and footbeds

Insoles should look intact, without deep impressions or cracks. Removable insoles are a plus because they can be cleaned or replaced.

Uppers, straps, and closures

Check that hook-and-loop straps still look grippy, laces and eyelets are intact, zippers on boots work, and elastic has not stretched out.

Structure and support

Heel counters, the firm cup around the heel, should hold their shape rather than look collapsed. For everyday shoes worn many hours a day, many parents prefer pairs graded Perfect or Great.

What you might choose to skip

Some families prefer to buy new for certain shoes, such as everyday shoes for a child with specific foot or gait concerns, or pairs with heavily compressed footbeds. Use your judgment and follow any advice from your child's doctor.

Step 5: Know the full price before you pay

Pre-loved shoes are usually a great value, but it helps to know exactly what you will pay:

Buying several items from the same seller can make shipping more efficient because everything travels in one package. If a seller has shoes and clothes in your child's size, it is worth browsing their other listings, or checking the bundles page for stacks of clothing in one size.

How KidResize protects buyers

Buying from another parent should feel safe and simple. KidResize builds protections into every order:

One important note: sales are final, so returns for fit or change of mind are not offered. That is why measuring first and reading listings closely matter so much. Our returns and refunds policy explains the details, and our guide to buying and selling used kids items safely shares more tips for shopping and meeting other parents.

Smart shopping tips for used kids shoes

  1. Buy ahead of the season. Look for snow boots in late summer and sandals in late winter, when choices are often better.
  2. Think one size up for seasonal pairs. Shoes your child will wear months from now may need extra room.
  3. Favor adjustable closures for toddlers. Hook-and-loop straps and elastic laces make fit easier to fine-tune.
  4. Clean before wearing. Wipe the outsides, clean or replace removable insoles, and let shoes air out.
  5. Check fit at home right away. Have your child try the shoes on soon after delivery so any not-as-described issue can be reported within the claim window.
  6. Save sellers you like. Parents with kids a size or two ahead of yours can be a great ongoing source.

When your child outgrows them

Once your child moves up a size, those shoes can help the next family. KidResize makes it easy to list outgrown pairs from the marketplace, and our guide on how to sell used kids shoes online walks through cleaning, photographing, and pricing them.

Frequently asked questions

Where can I buy used kids shoes online?

You can buy used kids shoes online on KidResize, a peer-to-peer marketplace where parents sell pre-loved children's clothing and shoes by exact size. Listings are photographed by the sellers, orders ship with tracked USPS labels, and checkout is processed by Stripe.

Is it safe to buy used shoes for kids?

Many families buy used kids shoes, especially pairs that were outgrown before they were worn out. Look for even sole wear, intact insoles, and firm heel support, clean the shoes before wearing, and follow any guidance from your child's doctor for specific foot concerns.

How do I know what size to buy?

Measure your child's longer foot from heel to longest toe, add a little growing room, and filter by that size on KidResize. Use "Include one size up/down" if a brand runs large or small, and compare the insole length when a seller lists it.

What shoe sizes does KidResize carry?

KidResize lists kids shoe sizes from Shoe 0 through Shoe 13 for babies, toddlers, and little kids, and Shoe 1Y through Shoe 7Y for big kids.

Can I return used kids shoes if they don't fit?

Sales on KidResize are final, so returns for fit or change of mind are not offered. If shoes arrive not as described, damaged, wrong, or not genuine, contact support within 3 days of delivery. If they never arrive, contact support within 30 days of purchase.

How much is shipping for kids shoes on KidResize?

Shipping is charged at the USPS Ground Advantage rate for the seller's package plus a $0.50 handling charge per seller order, and the exact amount is shown before you pay once you enter your address. Some sellers offer free shipping or free local pickup.

Find your child's next pair

Growing feet do not have to mean a growing shoe budget. Measure first, shop by exact size, read the photos closely, and buy on a marketplace built around families. Browse pre-loved kids shoes on KidResize today and find a pair that fits your child and your budget.

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