Balance Sport Bra

# 381 | Women's
Merino seamless sport bra

  • Merino seamless sport bra


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The Ibex Promise
We’re committed to uncompromising craftsmanship and to your satisfaction. If you are unsatisfied for any reason, return your purchase within 60 days with proof of purchase to receive an exchange, repair, or refund. It's our promise.

The most rugged of the Ibex bra collection, the seamless Balance Sport Bra is supportive enough for the sweatiest adventures, but comfortable enough to wear all day. Constructed of a mix of soft Merino and synthetics, this bra is a powerhouse at moisture management.

Tech Specs +

 Form Fit Runs small, please size upFit Guide
Wool Gauge:
 17.5 micron
Fabric Gram Weight:
Garment Weight:
 0.14 oz
Fiber Content:
 72% Wool, 22% Nylon, 6% Spandex
Fiber Source:
Fabric Source:
Garment Source:

Wool Type +


If textile construction was based solely on survival of the fittest, IbexÕs Balance fabric would pummel evolution. Made of a combination of the three top performance fibers, this fabric hybrid combines the best of all worlds. Wool for breathability, durability, softness, and odor management. Lightweight spandex and nylon for strength, stretch, fit, and support. Seamless Merino Undergarments

It Starts With Free Range New Zealand Merino Sheep
It Starts With Free Range New Zealand Merino Sheep
Understanding the Micron
Understanding the Micron

Size & Fit Guide Expand +

How Do I Determine My Size?

We recommend a general body measurement guide to determine your size in Ibex clothing. This sizing chart is not garment specific, but in fact a body measurement chart. Here are some helpful hints when measuring:

Bust/Chest: relax arms at sides, keeping the tape parallel to the floor, measure the fullest part of your bust/chest
Waist: keeping the measuring tape comfortably loose, measure around your natural waistline
Hips: standing with heels together, keep the tape straight and parallel to the floor, measure around the fullest part of hips
Sleeve Length: a 3-point measurement, standing with arms relaxed and slightly bent at sides, measure from the base of the neck to the shoulder and then from the shoulder to the wrist bone, add together measurements
Form-fit: garment designed to fit snug to the body throughout
Semi-fit: garment will be contoured to the body
Regular-fit: garment will not be slim, but also not oversized
Relaxed-fit: garment drapes loosely on body

Still need help determining your size? Call 800.773.9647 or email us at for specific garment measurements.

Q&A and Reviews

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Browse 7 questions Browse 7 questions and 61 answers
Why did you choose this?
Ibex Outdoor Clothing Store
best sports bra ever
stacy h on Oct 8, 2015
I'm looking for a comfortable, versatile, well-made bra that will go the extra mile when I do.
Renee G on Sep 29, 2015
best sports bra ever
stacy h on Oct 8, 2015
Love this bra. Wear it all the time, even use it to swim in.
Melissa H on Oct 2, 2015
I'm looking for a comfortable, versatile, well-made bra that will go the extra mile when I do.
Renee G on Sep 29, 2015
I found the bralette straps too tight and the bra too small overall, hoping this one fits a 34C better
Emily H on Sep 23, 2015
best choice for long hiking trip
Ann P on Sep 18, 2015
Great reviews, looks comfy.
Guest S on Sep 16, 2015
easy care, long-lasting, fun colors - these are my fave bras!
Julie V on Sep 15, 2015
Hate synthetic fabrics. Comfort. Have 2 other Ibex sports bras.
Danielle W on Sep 11, 2015
good comfy coverage to wear under plunging necklines
Anne D on Sep 9, 2015
Love the black one, so want one to wear under light clothes.
anne m on Sep 7, 2015
It is wool!
Wooly in PA on Sep 4, 2015
Just wanted something comfortable.
jan m on Aug 31, 2015
Hiking the AT in March, need to get my base layer.
Lisa H on Aug 30, 2015
stays put and keeps you dry
Danette L on Aug 30, 2015
I got one for my daughter and she loves the comfort this sport bra provides. She hikes and does ballet in it. Her favorite. Needed one for myself.
Kimberly N on Aug 23, 2015
Because I really love this sports bra
Pia V on Aug 21, 2015
One of my friends recommended them
elizabeth z on Aug 18, 2015
looking for the perfect ski bra. supportive, warm, natural fibers
Lauren W on Aug 13, 2015
It was recommended as a comfortable sports bra.
Ashley F on Aug 12, 2015
I have 3 of these that I wearing for years for an everyday bra year round. Can't go back to a standard bra.
Michele K on Aug 2, 2015
I love the way the fabric stretches around my shape. This is one of the most comfortable, faltering sports bras I have found for my 32D boobs.
Kristen J on Jul 29, 2015
The wool shelf bra cami isn't available anymore. Loved the pearl gray underwear color (especially in the tanks. The beige this year isn't my favorite...)
Tessa L on Jul 24, 2015
Need a new bra, willing to try this one.
DeAnn A on Jul 22, 2015
Comfortable support for working out and every day.
Kristen S on Jul 21, 2015
I have purchased this bra before, and love it. I can wear it all day, during strenuous physical activity -- sweating profusely -- and it stays comfortable.
L�rien D on Jul 15, 2015
Replacing some older pieces.
Gracie on Jul 15, 2015
Trying a new item
Julie L on Jul 7, 2015
I love my other bras from Ibex and thought I would try the sports bra!
Kate K on May 26, 2015
need a new sports bra, curious
Laverne E on May 14, 2015
Great support for high intensity aerobic activity
Cynthia B on May 14, 2015
Need you ask? It's like resting the girls in a comfy sofa!
Paula D on May 4, 2015
Comfortable, fit well
Abhiradi V on Apr 29, 2015
My favorite "all purpose" sports bra - from running to yoga to skiing, you can't beat it. I buy every color that comes out.
Dark gray and Navy would be awesome for the fall!
Paola Y on Apr 29, 2015
I wanted a good travel/hiking bra that wouldn't stink after days of use.
Jenny S on Apr 25, 2015
try out. wearing similar bra now...
Lucy L on Apr 23, 2015
Best bra ever!
Dawn S on Apr 23, 2015
Planning an endurance week-long 450-mile bike trek (RAGBRAI) and need stinkless, wicking, quick-drying goodies!
Mary M on Apr 19, 2015
This will be used for mountain biking.
Michelle D on Apr 9, 2015
I trust Ibex quality and fit and wanted to try one of their bras.
Susan R on Apr 8, 2015
Love this bra. Wear it all the time, even use it to swim in.
Melissa H on Oct 2, 2015
I found the bralette straps too tight and the bra too small overall, hoping this one fits a 34C better
Emily H on Sep 23, 2015
Does it have a pad? If not, does it show the nipples?
A shopper on Oct 3, 2015
BEST ANSWER: The W's Balance Sport Bra does not have padding and does not show the nipples. I just completed a six hundred mile mountain bike race in the Adirondacks and I wore the W's Balance Sport Bra for the entire race:). I have a four hundred mile race next in Virginia and my W's Balance Sport Bra is washed and ready to wear for my race:)
Is this bra supportive enough for larger chested women doing high impact sports?
A shopper on May 26, 2015
BEST ANSWER: I would say not. This does not have a lot of support in terms of compression or in terms of holding things in place. There are no foam cups and no strong elastic bands. It is very comfortable just doing regular daily activities or for hiking. I would not rely on this for high impact activities.
This is exactly what I want, but, alas, Large will not fit. Does this ever come in Extra Large, and/or does anyone know if Ibex plans to include XL in the future? Thanks!
A shopper on Aug 26, 2015
BEST ANSWER: Hello at this time the Balance Sport Bra is not being made in XL. We have passed the info on to the Designers so hopefully in the future they will make them in XL. Thanks
ey say "PLEASE NOTE: These tend to run small, size up one size.", But does it run smaller than the sizing chart that accompanies it (or is the sizing chart accurate?)
ad m on Aug 3, 2015
BEST ANSWER: Hi there, yes, I would still size up as our bras are very form fit.
Is the nylon and the spandex all throughout the fabric or only on the band?
lorena b on Jul 17, 2015
BEST ANSWER: Hello the nylon and spandex is all throughout the fabric. Thanks
4.8 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
comfortable support, breathes well. Ordered it wear canyoneering
Bra does not bind or have any pressure points. Lower area around rib cage is comfortable and gives with each breath.
August 11, 2015
2 months ago
Most Comfortable Sports-Bra
I have a small ribcage, but large breasts (32G, British sizing) and so I have a really hard time finding comfortable bras, much less sports bras. This bra actually supports me (not smashes)! I bought a large, and it fits great. I do wish the band was a little wider, so it wouldn't be as prone to rolling up on the front edge, but that's my only complaint. It's great to find a bra that doesn't leave any red marks or dents! I wouldn't run in it, but it's great for everyday activities and yoga.
August 27, 2015
1 month ago
Band runs small
I love these bras - I have 5 so far. I first ordered a medium because I am a 36B but I found the band too tight for comfort. My later purchases were size Large and is much more comfortable. I have no issue with the cup being too large because the knit fits very well and doesn't bag.
August 27, 2015
2 months ago
The Best!
I absolutely love this sports bra. I am incredibly small chested and use this bra for cycling. Even when hot, hot, hot, this bra wicks away moisture and never smells. I cannot wait to buy another.
October 4, 2015
4 weeks ago
Great for long runs!
I love this bra - supportive enough for running if you're a B cup. I can run for 3 hours in hot conditions with no chafing. I always save this one for my long run! Time to order more!
July 29, 2015
warm and comfortable
I am often chilled because my bra stays wet after working up a sweat while canoeing/kayaking, or if I get caught without my rain jacket. Being wool, this bra stays cozy and I dont get chilled. Very comfortable while providing moderate support (does not provide adequate support for high impact sports for large-busted women). I love it! It will also be good for ski season- I plan to l get one for my daughter for her hiking/canoing/skiing activities.
August 30, 2015
2 months ago
Fantastic sport bra!
I love this sport bra! It is the best fitting, most comfortable one I have ever found! It is lightweight, soft, and supportive for a B cup. It is cool in hot weather, and doesn't retain smell. I have not yet washed it, so can't speak to how it washes. I bought this in black, and wanted to get more, but have had a hard time finding one. Ibex, keep them coming!
June 25, 2015
4 months ago
Great! I am small but a large strong back. I wear a large and it is the best, warmest, most comfortable I have ever had.
May 22, 2015
love the design on this bra and can't stop looking at it
love the design on this bra and can't stop looking at it
June 22, 2015