Thermoregulating TempSync™ Wireless Plunge Bra
$101
Thermoregulating TempSync™ Wireless Plunge Bra
$101
Product Details
Your plunge bra shouldn't leave you sweating through a low-cut top. The TempSync™ Wireless Plunge Bra uses 37.5® thermoregulating fabric that reads your body heat and humidity in real time, so it balances your temperature before you overheat. It's a wireless plunge bra that keeps you cool, lifted, and smooth from morning through night.
- 37.5® cooling technology: Naturally derived mineral particles are built into the fiber, so they wick moisture and cool you down without washing out.
- Wire-free lift: Breathable cups lift and shape you all day, no underwire poking or digging.
- Deep plunge shape: A deep-V cut with moderate coverage stays hidden under low necklines while giving you a wireless push up look.
- Convertible straps: Adjustable, multi-way straps switch to an x-back for racerback tops and off-shoulder styles.
- Hook-and-eye closure: An adjustable back closure dials in your band as your body changes through the day.
- Tagless label: A scratch-free, tagless finish means no itchy tag between your shoulders.
- Skin-friendly fabric: Made free from PFAS, disperse dyes, and PPD, so what's against your skin stays simple.
Size & Fit
- True to size
- Moderate coverage
Fabric & Care
- Fabric: 83% 37.5® nylon/12% spandex/5% nylon
- Core mesh: 93% nylon/7% Spandex
- Hand wash in cold, lay flat to dry
- Use a lingerie bag for machine wash
Shipping & Returns
Free shipping on orders over $135 CAD.
Perfect fit promise: returns & exchanges free for 60 days for all orders. Please try on the bra to ensure a good fit, making sure to leave the original tags attached. We only accept underwear in unworn condition, with original tags, in its unopened original polybag. Items marked final sale are not eligible for return or exchange. If something’s not right, we can help. Our Fit Experts are available via live chat, or email to answer any questions you might have.
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FAQs
What is a plunge bra?
A plunge bra has a deep-V, low-cut center and cups that sit lower on your chest. That shape stays hidden under V-necks and low-cut tops while still giving you lift. The TempSync™ version keeps that plunge shape with moderate coverage and wire-free support.
Do cooling bras really work, and how does the TempSync™ cooling work?
Yes. The TempSync™ fabric uses 37.5® technology, with naturally derived mineral particles embedded right in the fiber. Those minerals respond to your body heat and humidity in real time to balance your temperature and wick moisture before you overheat. Because they're part of the fiber, the cooling doesn't wash out over time.
Is a wireless plunge bra supportive enough?
Yes. The breathable cups are built to lift and shape you all day without an underwire. Adjustable straps and a hook-and-eye back closure let you fine-tune your fit, and the plunge cut still holds its shape under clothes.
What should I wear this plunge bra under, and does it show under low-cut tops?
Wear it under V-necks, low-cut tops, and wrap dresses where a regular bra would peek out. The deep-V cut sits low enough to stay invisible, and the smooth cups keep clean lines under fitted clothes. Switch the straps to an x-back for racerback and off-shoulder styles.
How do I find my size, and is it true to size?
It runs true to size, so start with your usual Thirdlove size. This plunge style comes in bands 30–44 and cups A–H, including half-cups, so you can get closer to a real fit. If you're between sizes or new to Thirdlove, take the Fit Quiz or chat with a fit stylist.
How do I care for and wash it?
Hand wash it in cold water and lay it flat to dry to protect the fabric and elastic. If you machine wash, use a lingerie bag on a gentle cycle. Skip the dryer, since heat can break down the stretch over time.
Is it good for menopause, hot flashes, or summer?
Yes. The 37.5® thermoregulating fabric is a strong pick for hot flashes, night sweats, perimenopause, and menopause because it adjusts to your body heat as it rises. It's also a cooling bra for summer, hot weather, and pregnancy or postpartum, when you tend to run warm.
Is the fabric free from harmful chemicals like PFAS?
Yes. This bra is made free from PFAS, disperse dyes, and PPD. The 37.5® minerals that cool you are naturally derived and built into the fiber, so you get the temperature benefit without added chemistry against your skin.
