About ThirdLove Sizing
ThirdLove offers half-cup sizes (1/2 cup increments). Their fit tends true with extra width. The brand is based in US and primarily targets shoppers looking for half-cup sizes, T-shirt bras, older shoppers.
ThirdLove Size Range at a Glance
| Detail | Range |
|---|---|
| Band sizes | 30–48 |
| Cup sizes | AA–I |
| Country of origin | US |
| Best for | half-cup sizes, T-shirt bras, older shoppers |
| Signature style | 24/7 Classic T-Shirt Bra |
| Sizing tendency | Runs true to size |
How to Pick the Right ThirdLove Size
- Measure your under-bust and bust at home (snug under, loose over).
- ThirdLove runs true to size — buy your measured size on the loosest hook.
- Try the bra on the loosest hook for the first 2–3 weeks of wear.
- Test the fit using the band test (two fingers under) and cup test (no spillage, no gap).
Best ThirdLove Bra by Use Case
- Half-cup sizes — try the 24/7 Classic T-Shirt Bra or browse the half-cup sizes category on the ThirdLove site.
- T-shirt bras — try the 24/7 Classic T-Shirt Bra or browse the T-shirt bras category on the ThirdLove site.
- Older shoppers — try the 24/7 Classic T-Shirt Bra or browse the older shoppers category on the ThirdLove site.
ThirdLove vs Other Major Brands
If you already wear a different brand, here is how ThirdLove typically compares:
- vs Victoria's Secret: half a band difference.
- vs Aerie: comparable in band; cup may differ.
- vs Wacoal: Wacoal is the gold standard for true-to-size fit. ThirdLove matches it well.
Common ThirdLove Fit Issues
- Band stretching out faster than expected — replace at 6 months in heavy rotation.
- Cup gapping at top — sister-size down or try a different cup style.
- Underwire too narrow — switch to a brand designed for projected breast shapes (Freya, Chantelle).