All products featured on Self are independently selected by our editors.

However, we may receive compensation from retailers and/or from purchases of products through these links.

A Cup

“I need a style that stays put when Irunand gives me shape.

Image may contain Clothing Apparel Lingerie Underwear and Bra

COPYRIGHT ©2013 THE CONDÉ NAST PUBLICATIONS. ALL RIGHTS RESERVED.

“Michele Fragner, 30

What to look for:Bras with an ultra-cozy fabric and a snug fit.

Because you don’t need a crazy amount of support, comfort is key.

Light paddingskip mega foamenhances assets so the effect is natural, not fembot.

This image may contain Human Person Sport Sports Exercise Working Out Fitness Gym Female and Woman

Top pick:Spark, $40;Saucony.com.

Top pick:Sprint Seamless, $48;Athleta.com.

“She moved freely on the bikeher boobs didn’t,” Lawson says.

Image may contain Clothing Apparel Swimwear Bikini Lingerie and Underwear

“It has just the right stretch without compromising support.”

“Stefanie Mercadante, 23

Top pick:Seamless Cami Sportbra, $30;Jockey.com.

The result: no T-shirt required.

Image may contain Human Person Exercise Fitness Sport Sports Working Out Gym Vehicle Transportation and Bike

“Amber Leach, 39

Top pick:AYAMi, $38;Asics.com.

Distinct seams outline cups in the lining, helping lift and separate.

(But if you’re on the larger B spectrum, it probably isn’t adequate support.)

This image may contain Diaper Clothing and Apparel

(Opt for sturdier encapsulationwhich cradles each breast separatelyfor more intense sports, like running orboot camp.)

Top pick:Champion Double Dry Seamless Cami, $26;ChampionUSA.com.

The tank neckline keeps the girls in place during Downward Dog; cami-like crisscross straps stay on shoulders.

Image may contain Human Person Female Woman and Face

“She didn’t even spill out when sideways.”

“Jenn Waldron, 36

Top pick:Fiona; $46;MovingComfort.com.

“Alexandra Inganamort, 28

Top pick:Seamless Power Mesh Racerback, $45;Marika.com.

Image may contain Clothing Apparel Tank Top Lingerie and Underwear

The rise is high enough in the front that she doesn’t spill out during inversions.

“It’s great for serious sweat sessions.

And the electric yellow is hot, too (in a good way!

Image may contain Human Person Female Clothing Apparel Dating and Woman

); it can make any plain Jane workout top pop.

D Cup

“I lovehigh-impact workoutsbut need to minimize all that bounce.

Extras such as wide, cushioned straps literally take weight off your shoulders.

Image may contain Clothing Apparel Handbag Accessories Accessory and Bag

A sturdy, nonstretch rib band in front and cross-back straps keep the bra (and breasts) secure.

Top pick:Ta Ta Tamer II, $58;Lululemon.com.

This bra leaves nothing to be D-sired.

Image may contain Human Person Stretch Fitness Exercise Sport Sports Working Out and Yoga

It has every essential detail listed above.

“I want to jump around duringZumbaand not feel like I’m going to bust out of my bra.

“Monica Escaleira, 35

Top pick:Victory Adjust x Bra, $55;Nike.com.

This image may contain Clothing and Apparel

And the ultimate game changer for big boobs: not cutting into underarms.

(Later, back fat!)

Top pick:Sports Bra, $64 to $66;Enell.com.

This image may contain Human Person Female Exercise Sport Sports Working Out Fitness and Woman

In-front hooks make it easy to get it on (and off).

“This secure style let her twist and turnamazing!”

This image may contain Clothing Apparel Handbag Accessories Accessory Bag and Diaper

This image may contain Human Person Exercise Sport Sports Working Out Fitness Stretch Yoga and Female

Image may contain Clothing Apparel Lingerie Underwear Swimwear Bikini and Bra

This image may contain Human Person Female and Woman

This image may contain Clothing Apparel and Harness

This image may contain Human Person Female Exercise Sport Sports Working Out Fitness and Woman

Image may contain Clothing and Apparel

Image may contain Human Person Sphere People Female Sport and Sports

Image may contain Clothing Apparel and Vest

Image may contain Face Human Person Smile Female Woman Hair Clothing Apparel and Rickie Lee Jones