How to Choose the Right Sports Bra — A Complete Guide

A great workout starts with the right support. Whether you're training for a marathon, attending a HIIT class, or heading out for a walk, choosing the right sports bra can significantly improve your comfort, confidence, and performance.

Yet with so many styles, support levels, and sizing options available, finding the perfect fit can feel overwhelming. If you're looking for the best sports bra NZ shoppers trust or researching the best support for your activity level, understanding the key features of a sports bra is the first step. Browse our collection of sports bras designed to support every body and every workout.

The ideal sports bra should minimise movement, reduce discomfort, and provide the support you need without restricting movement. Whether you're shopping for running sports bras, a high impact sports bra, or an everyday training bra, this guide will help you choose the right style for your needs.

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What to Consider Before Buying a Sports Bra

Not all sports bras are designed for the same purpose. Before purchasing a sports bra, consider the following factors:

Your Activity Level

Different workouts create different levels of breast movement. Running, jumping, and high-intensity training require significantly more support than yoga or walking.

Your Bust Size

Women with larger busts often require additional support features such as encapsulated cups, wider straps, reinforced bands, and adjustable fittings.

Comfort

The best sports bra should feel secure without being restrictive. Look for breathable fabrics, smooth seams, and moisture-wicking materials that keep you comfortable during exercise.

Fit

Even the highest-quality sports bra won't perform properly if it doesn't fit correctly. A well-fitted bra should provide support without digging into your skin or restricting your breathing.

Impact Level: Match Your Bra to Your Activity

One of the most important factors when choosing a sports bra is understanding how much support your activity requires.

High-Impact Activities (Running, HIIT, CrossFit)

High-impact exercise creates the greatest amount of breast movement.

Examples include:

Running
HIIT workouts
CrossFit
Netball
Tennis
Aerobics

For these activities, a high impact sports bra is essential.

Features to look for include:

Maximum bounce control
Adjustable straps
Encapsulation support
Secure underband
Full coverage cups

If you're searching for the best running sports bra or a reliable sports bra for running, prioritise support over style. Running places significant demands on breast tissue, making high-impact support critical for both comfort and long-term breast health.

For additional running-specific recommendations, see our guide: For additional running-specific recommendations, see our guide: The Best Sports Bras for Running

Medium-Impact Activities (Cycling, Hiking)

Medium-impact activities involve movement but generally less repetitive vertical motion than running.

Examples include:

Cycling
Hiking
Strength training
Dance classes
Rowing

A medium-support sports bra often provides sufficient support for these activities.

Look for:

Comfortable compression
Breathable fabrics
Adjustable straps
Moderate support structures

Many women find medium-impact bras offer an ideal balance between support and comfort for everyday workouts.

Low-Impact Activities (Yoga, Pilates, Walking)

Low-impact exercise involves minimal breast movement.

Examples include:

Yoga
Pilates
Stretching
Walking
Barre

Low-support sports bras prioritise comfort and flexibility.

Key features include:

Soft fabrics
Lightweight construction
Wire-free support
Comfortable stretch

Even during low-impact activities, a properly fitted sports bra can improve comfort and reduce strain.

Sports Bra Styles Explained

Sports bras generally fall into three main categories.

Encapsulation Sports Bras

Encapsulation sports bras support each breast individually using separate cups.

Benefits include:

Natural shape
Enhanced support
Reduced movement
Greater comfort for larger busts

Encapsulation styles are particularly effective for women with D–G cup sizes and are commonly found in high-support and high-impact designs.

Model wears Bendon Sports Underwire Bra in BLACK. On body front view

Compression Sports Bras

Compression sports bras work by pressing breast tissue against the chest wall.

Benefits include:

Lightweight feel
Simple construction
Comfortable fit for smaller busts
Suitable for low to medium-impact exercise

Compression bras are often popular among women with smaller cup sizes who participate in yoga, walking, and general fitness activities.

Model wears Power Underwire Bra in LATTE. On body front view

Combination (Encapsulation + Compression)

Many of today's best sports bras combine both technologies.

This hybrid design offers:

Individual cup support
Bounce reduction
Enhanced stability
Superior comfort during high-impact exercise

For women seeking the best sports bra Australia and New Zealand shoppers recommend for running or HIIT, combination designs often provide the most effective support.

Power Underwire Bra in LATTE. Feature shot

Finding the Right Fit

Even the most supportive sports bra won't perform properly if it doesn't fit correctly.

How Should a Sports Bra Fit?

A sports bra should feel firm and supportive without causing discomfort.

You should experience:

Minimal breast movement
No digging or pinching
Comfortable breathing
Full breast coverage
Secure support during movement

A properly fitted sports bra should feel more supportive than your everyday bra.

Band Fit

The band provides the majority of a sports bra's support.

A well-fitting band should:

Sit level around the body
Feel snug but comfortable
Stay in place during movement
Not ride up at the back

If the band moves during exercise, it may be too loose.

Cup Fit

Your breasts should sit fully inside the cups without:

Overflowing at the top
Escaping at the sides
Gaping or wrinkling

If you're experiencing spillage or movement, consider adjusting your cup size or choosing a style with greater coverage.

Check Your Size Before Buying

Because sizing varies between brands and styles, it's worth checking your measurements regularly. Use our comprehensive Bra Size Chart to help determine your ideal fit. If you're unsure of your size, a professional fitting can also help identify the best support level and style for your body.

Sports Bras for Larger Busts

Women with larger busts often require additional support features to remain comfortable during exercise.

If you wear a D, DD/E, F, or G cup, look for:

Encapsulation support
Wider straps
Reinforced underbands
Adjustable closures
Full-coverage cups

A larger bust experiences greater movement during exercise, making proper support essential for reducing discomfort and improving workout performance. For a more detailed breakdown of sports bras designed specifically for fuller busts, see our guide: Sports Bras for Large Busts — High Impact Guide. Choosing the right support level becomes even more important for women participating in high-impact activities such as running, HIIT, and team sports.

Wire-Free vs. Underwire Sports Bras

One of the most common questions shoppers ask is whether underwire is necessary in a sports bra.

Wire-Free Sports Bras

Benefits include:

Flexible comfort
Reduced pressure
Lightweight feel
Suitable for everyday wear

Many women prefer wire-free styles for yoga, gym sessions, and all-day comfort.

Underwire Sports Bras

Benefits include:

Additional lift
Enhanced shaping
Improved support for larger busts
Better separation

Modern underwire sports bras are specifically designed for movement and often include padded channels that improve comfort during exercise.

The right choice ultimately depends on your activity level, support requirements, and personal preference.

Our Recommended Sports Bras from Bendon

Bendon offers sports bras designed to support women across a range of activities and cup sizes.

Bendon Stamina High Impact Wire Free Sports Bra

Best for:Running and high-impact workouts

Key features:

Wire-free design
Padded shoulder straps
Breathable mesh panels
Designed for high-impact activities

Shop:Stamina High Impact Wire Free Sports Bra

Model wears Stamina Wire Free Bra in BLACK. On body front view

Bendon Power Underwire Sports Bra

Best for:D–G cup support during high-impact exercise

Key features:

Underwire construction
Wide adjustable straps
Structured support
Suitable for high-intensity workouts

Shop:Bendon Power Underwire Sports Bra

Bendon Breathe High Impact Sports Bra

Best for:High-intensity training and cardio

Key features:

Breathable design
Moisture-managing fabrics
Supportive cup construction
Designed for movement and comfort

Shop:Bendon Breathe High Impact Sprots Bra

Model wears Bendon Breathe Contour Bra in MEDIEVAL/RAINFOREST. On body front view

Bendon Sports Underwire Bra

Best for:Gym workouts and everyday training

Key features:

Underwire support
Secure fit
Designed for active lifestyles
Suitable for medium-to-high impact activities

Shop:Bendon Sports Underwire Bras

A sports bra should feel firm and secure without restricting breathing or causing discomfort. The band should sit snugly around the rib cage, and the cups should fully contain breast tissue without creating pressure points.
The best running sports bra provides high-impact support, minimises bounce, and offers a secure fit. Features such as encapsulation, adjustable straps, and reinforced underbands are particularly important for running.
Yes. Many women wear sports bras for everyday comfort, particularly wire-free styles. However, support needs vary, and some people may prefer the shape and fit of traditional bras for daily wear.

Say hello to comfortable sports bras

Choosing the right sports bra isn't just about comfort—it's about ensuring you have the support needed to move confidently through every workout. Whether you're searching for a high impact sports bra, comparing running sports bras, or looking for the best sports bra NZ shoppers recommend, the right fit and support level can make a significant difference. By matching your sports bra to your activity, understanding the different support styles available, and prioritising proper fit, you'll be able to find a sports bra that helps you perform at your best while staying comfortable every step of the way.