We’ll hang onto a favorite sports bra long past its prime — it’s comfy, it’s familiar, and replacing it feels like a chore. But a sports bra that’s lost its support isn’t doing its one job, and your workouts (and comfort) pay the price. Here’s how to tell when it’s genuinely time to let go.

Why Sports Bras Don’t Last Forever

The support in a sports bra comes from stretchy elastic that naturally breaks down over time — through washing, wearing, sweat, and stretching. Even with perfect care, that elasticity eventually gives out. When it does, the bra can look totally fine while offering almost no real support. Looks can absolutely deceive.

The 5 Telltale Signs

1. The Band Has Gone Loose

Most support comes from the band. If it no longer feels snug — or rides up during workouts — the elastic is shot. This is the biggest red flag.

2. You’re Getting More Bounce

If you’re feeling more movement than you used to during the same workout, the bra has quietly stopped doing its job. Trust what you feel.

3. The Straps Won’t Stay Put

Constantly slipping or stretched-out straps mean the elastic has given up.

4. It Looks Stretched or Misshapen

Visible sagging, wavy bands, or a generally “tired” look are clear signs it’s past its prime.

5. It’s Just Not Comfortable Anymore

Pilling fabric, new chafing, or a fit that feels off — your body is telling you it’s time.

How to Make the Next One Last Longer

Once you’ve replaced it, protect your investment: wash cold, air dry always, skip fabric softener, and rotate between a few bras so the elastic can recover. Good care genuinely extends the lifespan — but nothing lasts forever, and support is non-negotiable.

Bottom Line

Replace your sports bra when the band loosens, bounce increases, straps slip, it looks stretched, or comfort disappears. A supportive bra is the foundation of a good workout — don’t let sentimentality leave you unsupported. When the support’s gone, so is its purpose. Time for a fresh one.