Discover the best high-impact sports bras for running, CrossFit, and gym workouts. We tested top picks from Lululemon, SHEFIT, Nike, Under Armour, and ThirdLove for support, comfort, and durability across all cup sizes.
Finding a sports bra that can truly handle high-impact training—whether it is training for a marathon, crushing a CrossFit WOD, or engaging in intense HIIT sessions—is often harder than the workout itself. The ideal high-impact sports bra needs to do more than just look good; it must minimize bounce, prevent chafing, wick away sweat, and provide all-day comfort.
Based on over 700 hours of exercise testing, ranging from long hikes to studio fitness classes, we have narrowed down the market to the top five performers. Our research analyzed support levels across cup sizes (from AA to G), moisture-wicking technology, durability, and adjustability. Below, we break down the best high-impact sports bras that deliver security and style so you can focus on your performance, not your gear.
The Lululemon Energy Bra has long been a staple in the fitness community, but their High Support version takes it to a new level for those with B to G cups. It is widely regarded by fitness experts as a favorite due to its impressive blend of breathability and lockdown support.
Key Features & Performance:
Testers praised the high levels of coverage and the durable construction that withstands long days and frequent washing.
Shop the Lululemon Energy Bra High Support
If adjustability is your primary concern, the SHEFIT Ultimate Sports Bra is a game-changer. Known for its innovative design, this wire-free bra allows for a fully customizable fit, making it a top contender for anyone who struggles with standard sizing.
Key Features & Performance:
The exterior is made from 100% polyester for durability, while the interior is lined with Power Mesh (86% Nylon, 14% Spandex) for silky comfort against the skin.
Shop the SHEFIT Ultimate Sports Bra
Nike has reinvented a classic with the Swoosh High Support Sports Bra. This product addresses one of the most common complaints in the industry: removable pads that bunch up or get lost in the wash. Nike solved this by sewing the cups in place, ensuring everything stays where it belongs.
Key Features & Performance:
After nearly 200 wears during testing, this bra remained a favorite for its longevity and reliable fit.
Shop the Nike Dri-FIT Swoosh High Support
Under Armour threw out traditional construction rules to create the Infinity 2.0. Instead of cutting two round cups, they injected liquid foam into a figure-8 pattern, designed to follow the natural movement of the breasts during running and jumping.
Key Features & Performance:
Customers with larger bust sizes have praised the Infinity 2.0 for its excellent support and the inclusion of adjustable straps and anti-odor technology.
Shop the Under Armour Infinity 2.0
ThirdLove is famous for its inclusive sizing, and they have brought that same philosophy to their activewear line. The Kinetic High-Impact Sports Bra combines compression with encapsulation to support each breast individually, rather than just smashing them against the chest.
Key Features & Performance:
User feedback highlights the effectiveness of the inner cup fabric in wicking away moisture and the exceptional security provided by the wide straps.
Shop the ThirdLove Kinetic Sports Bra
When shopping for a sports bra for high-intensity activities, keep the following criteria in mind to ensure you get the best performance for your money.
There are generally two types of support: compression and encapsulation. Compression bras hug the breasts close to the body to restrict movement, while encapsulation bras support each breast individually with molded cups. For high-impact workouts, a combination of both—or a strong encapsulation style—often provides the best bounce control.
Look for hydrophobic materials. Polyester blends are the gold standard because the fibers repel water. When blended with Spandex or Lycra, you get the necessary stretch combined with moisture management. Technologies like Nike's Dri-FIT or Lululemon's Luxtreme are engineered specifically to keep you dry.
Sports bras work hard, and their elastic wears out over time. While experts recommend replacing your sports bra twice a year depending on usage frequency, you can extend its life by washing it in cold water and hanging it to dry. Signs that you need a replacement include loose bands, overstretched straps, or fabric that has begun to pill or develop holes.
Bodies change, and so do the demands of different workouts. Bras with adjustable straps and bands (like the SHEFIT or Lululemon Energy Bra) allow you to tighten the fit for a run and loosen it slightly for a yoga cool-down. Adjustability also prolongs the life of the bra; as the elastic relaxes over time, you can tighten the straps to maintain the same level of support.
