What to do
- Check its paired material symbol — leather and textile linings breathe; synthetic linings trap more moisture.
- For odor and moisture care, the lining material matters more than the upper.
- Pull insoles out to air-dry after heavy wear regardless of material.
What happens if you ignore it
Linings absorb sweat daily. Treat a leather lining like a synthetic one (or vice versa) and you get cracking, smell, or dye rubbing off on socks — the most common shoe complaints there are.
Where you'll see it
The middle row of the label's material grid, on the tongue label or box.
Common questions
Why does my shoe have a leather upper but synthetic lining?
Cost and structure — it's extremely common. That's exactly why the label rates the parts separately; each needs its own care.
How do I care for the lining?
Air shoes out between wears, use cedar shoe trees for leather linings, and let insoles dry separately. Persistent odor usually means the lining never fully dries.
Related symbols
- Upper — this marks the upper
- Outer Sole — this marks the outer sole
- Textile — the part is made of textile
- Other Materials — the part is made of “other materials”
Or just scan the tongue tag
CareLabl scans shoe labels too. Point your camera at the tongue tag and get the upper, lining, and sole materials plus a care routine — then scan the outside for cleaning steps matched to the condition you're actually looking at. Try Pro free for 3 days, no credit card needed.