Not all secondhand is equal. Anyone who's dug through a disorganised charity bin knows the feeling — faded prints, pilling fabric, mystery stains, and sizing that makes no sense. It puts people off preloved entirely, which is a shame, because the good stuff is genuinely good.
The key is knowing what to look for. Here's how to spot quality in secondhand children's clothes — whether you're shopping a curated service, a local market, or a friend's hand-me-down bag.
Check the Fabric First
Natural fibres — cotton, wool, linen — tend to age better than synthetics. They breathe better, wash better, and hold their shape longer. Look at the care label. 100% cotton basics are usually a safe bet. Avoid anything that feels stiff, scratchy, or has a plasticky sheen — that's usually a sign of low-quality construction that won't improve with washing.
Look at the Seams
Turn the garment inside out. Are the seams straight and even? Is the stitching tight with no loose threads? Quality construction shows in the details. Cheap garments often have uneven seams, skipped stitches, or raw edges that fray quickly.
Check High-Wear Areas
Knees, elbows, cuffs, and collar edges take the most abuse. These are the first places to show wear. A little fading on the knees of jeans is normal and often fine. Actual thinning of the fabric, pilling, or fraying at the cuffs is a sign the item is near the end of its life.
Assess the Colour
Fading is the most common issue with secondhand kids' clothes. Hold the item up to natural light. Is the colour even, or are there patches of fading around the shoulders or collar? Uneven fading usually means the item was dried in direct sunlight repeatedly — it won't reverse.
Check Zips, Buttons, and Fastenings
Test every zip. Check every button is present and secure. Look at press studs on baby clothes — they should snap firmly. These are easy things to miss and annoying to deal with once you're home.
Smell It
A clean item should smell like nothing, or faintly of laundry. Musty, smoky, or chemical smells can be hard to remove and are a reason to pass. At Left Knee Patch, every item is professionally washed before listing — so you don't have to worry about this one.
Know the Brands Worth Buying Secondhand
Some brands are worth buying new. Others are worth buying secondhand specifically because they're built to last. Boutique kids' brands, Scandinavian labels, and heritage basics tend to hold up well. Fast fashion brands — even secondhand — often aren't worth it because the quality wasn't there to begin with.
Shop Curated When You Can
The easiest way to avoid the quality lottery is to shop a curated preloved service that does the sorting for you. At Left Knee Patch, we inspect every item before it goes live — so what you see is what you get. Browse our current selection at leftkneepatch.com.
About the author: Elli Stephanede is the founder of Left Knee Patch and a contributor to Sixx Cool Moms. She writes about sustainable parenting, preloved kids' fashion, and life beyond fast fashion.
