do these run small? what size should i get for 34b?

I run in this all the time, and do all kinds of jumping and bouncing around at the gym. I wear 36A or B (depending on how fat I am! ) and wear a Medium, and have no problems at all. It compresses where it should with out being too tight, and is super soft and stretchy. The white CAN be see through with enough sweating, as most white tops are....So I use it under a tank. I've been running for over 25 years and will never run in anything but a Champion, they're awesome and last a very very long time. Well worth it!

Are you able to wear one in water as a swimsuit?

I wouldn't. It definitely absorbs water.

Where is origin this bra?

WHERE? It's a FANTASTC sports bra!!!!!!!!!!!!!!!!!!!!

Womens The Infinity Racerback Sports Bra Moderate Support Seamless Moisture

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JD 29.67

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Sold byAmazon JORDANDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Elevate your activewear game with seamless support and unstoppable comfort!

LIGHTWEIGHT TRUE TO SIZE - Crafted with a breathable nylon-spandex blend that fits like a dream and moves with you.
PERFORMANCE DRIVEN SUPPORT - Double-layer compression offers moderate, unrestricted support perfect for any workout or casual wear.
HERITAGE STYLE MODERN EDGE - Iconic Champion 'C' logo adds a subtle yet unmistakable mark of quality and style.
VERSATILE RACERBACK SILHOUETTE - Airy racerback style blends function and fashion, making it your go-to for gym or downtime.
ALL DAY COMFORT ZERO DISTRACTIONS - Seamless design and Double Dry fabric keep you cool and chafe-free from AM to PM.

Champion Women's The Infinity Racerback Sports Bra combines seamless construction with moisture-wicking Double Dry technology to deliver moderate, wire-free support. Designed with a breathable racerback silhouette and crafted from a lightweight nylon-spandex blend, it ensures all-day comfort and chafe-free wear. Perfect for workouts or casual wear, this bra features the iconic Champion logo, fitting true to size and built to keep you cool and confident.

Specifications

ASIN	B00AHTK0BI
ASIN	B0GZ522YDW
Age Range Description	Adult
Apparel Closure Orientation	Back
Apparel Closure Type	Pull-On
Apparel Fabric Stretch	Medium Stretch
Apparel Fabric Weight Class	Lightweight
Back Style	Racerback
Best Sellers Rank	#9,617 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #56 in Women's Sports Bras
Bra Cup Coverage	Full Coverage
Bra Design	Sports
Bra Function	Sports
Bra Padding Level	Light
Bra Shape	Sports
Brand Name	Champion
Color	White
Customer Reviews	4.2 4.2 out of 5 stars (11,460)
Date First Available	April 30, 2026
Department	womens
Fabric Type	95% Nylon, 4% Spandex, 1% Polyester
Fit Type	Athletic
Fit to Size Sentiment	Fits True To Size
Garment Size Country	United States
Global Trade Identification Number	00011919083480
Import Designation	Imported
Included Components	Pad
Inner Material	95% Nylon/5% spandex
Item Type Name	Sports Bra
Item Weight	3.04 ounces
Manufacturer	Champion Women's Activewear
Manufacturer	Champion
Manufacturer Part Number	CPW253TX01
Material Opacity	Opaque
Material Type	Nylon, Spandex
Model Name	The Infinity Racerback Sports Bra, Moderate Support, Seamless, Moisture-wicking
Neck Style	Scoop Neck, Scoop Neck, Scoop Neck, Scoop Neck, Scoop Neck
Number of Items	1
Occasion Type	Gym,Sports,Workout
Pattern	Solid
Product Care Instructions	Machine Wash
Seasons	Fall
Sleeve Length Description	Sleeveless
Sport Type	Exercise & Fitness, Running, Weightlifting, Workout & Training, Yoga
Strap Type	Racerback
Style Name	The Infinity Racerback Sports Bra, Moderate Support, Seamless, Moisture-wicking
Style Number	CPW253TX01
Support Level	Medium
Total Product Quantity	1 Count
UPC	011919083480
Underwire Type	Wire Free
Unit Count	1 Count

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JD 29.67

Duties & taxes included

In stock

Sold byAmazon JORDANDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to JORDAN.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Women's The Infinity Racerback Sports Bra, Moderate Support, Seamless, Moisture-Wicking

Description

Specifications

Common Questions