FurSize / Brand size charts / Sporn size chart
Sporn Easy Fit Harness size chart
Sporn's Easy Fit is a step-in mesh harness in four sizes, sized by girth only. The ranges are in inches, so the centimeters are our conversion.
FIND YOUR SIZE
Type your dog's chest number
Slide or type to see which row fits.
| Size | Chest girth |
|---|---|
| Small | 14–21 in |
| Medium | 19–26 in |
| Large | 24–36 in |
| X-Large | 30–41 in |
The brand prints inches. Centimeters in this guide are converted by FurSize.
Numbers copied from sporn.com, checked 2026-10-10. Brands change charts, so confirm on the product page before you order. FurSize is not affiliated with Sporn.
Before you order
Sporn sizes the Easy Fit by girth, the distance around the chest.
Different brands cut different sizes, so a Medium here is not a Medium elsewhere. Match the chest number every time. The fit check takes a minute once it arrives.
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Questions
What size Sporn easy fit harness should I get?
Match your dog's chest girth to the chart on this page. Sporn's page lists girth ranges only and gives no in-between rule. The ranges overlap, so a dog at 20 in can take Small or Medium.
How do I measure chest girth?
Stand your dog and wrap a soft tape around the widest part of the ribcage, just behind the front legs. Keep it snug, with room for two fingers.
Get a number you can reuse.
Type your dog's chest once. See the right size in every brand we cover.
