If you spend a lot of time in the gym, on the mat or out on the trail, the right sports bra can make the difference between a great session and one that ends early with chafing and sore shoulders. Medium support designs, like the Sweaty Betty Power range, are a sweet spot for most women’s everyday training – supportive without feeling like armour.
Why medium support sports bras suit most workouts
Not every day is a sprint session or a long run. For strength training, spin, yoga, Pilates, brisk walks, light running and general gym classes, a medium support sports bra usually provides all the control you need with far more comfort than many high-impact options.
The SWEATY BETTY SB W PWR M SUP BRA is a good example of this balanced approach. It uses a stretchy, sweat-wicking and quick-drying fabric blend (62% polyamide, 38% elastane) with four-way stretch to move with you through lunges, presses and flows. A flattering scoop neck and looped back keep it looking sleek under vests and tees, while the support level is engineered for those medium-impact days.
If you want the full lowdown on how it performs in the real world, you can read our full review of the Sweaty Betty SB W Power Medium Support Bra alongside this broader guide.
Key features to look for in a training sports bra
Even if you’re browsing a rack of colourful bras, focusing on a few core features will help you pick something that works as hard as you do.
Support level that matches your activity
Medium support bras are designed for activities where there’s movement and some impact, but not continuous pounding. The SB W PWR M SUP BRA is explicitly described as medium support, making it suitable for:
- Gym workouts and strength training
- Spin and indoor cycling
- Pilates, barre and dynamic yoga
- Hikes and power walks
- Short, easy runs for some people
If your week is a mix of these kinds of sessions, one solid medium support bra can quickly become your most-worn piece of kit.
Fabric: sweat-wicking and quick-drying
A good sports bra should manage moisture just as well as your technical tops. The SB W PWR M SUP BRA is made from sweat-wicking and quick-drying fabric, which helps pull moisture away from your skin and speeds up evaporation.
This is especially useful if you commute home in your kit or double up classes. A quick-drying fabric means your bra won’t stay cold and clammy against your skin once you stop moving, reducing the risk of chills or irritation.
Stretch and freedom to move
Four-way stretch is now a must-have in quality sports bras. It helps the bra flex with your body in all directions rather than fighting your movement or riding up. The SB W PWR M SUP BRA uses 4-way stretch, making it well-suited to deep squats, overhead lifting or twisting yoga poses.
This type of material also tends to feel less restrictive around the ribcage, which is important for anyone who dislikes the corseted feeling some high-support bras can give.
Strap design and adjustability
Straps do a lot of the heavy lifting when it comes to comfort and support. The SB W PWR M SUP BRA features a looped back with an adjustable T-bar strap. This style:
- Helps keep straps firmly in place during dynamic movement
- Reduces slipping off the shoulders compared with straight straps
- Can free up the shoulder area for better range of motion
Being able to adjust the straps is also a plus, particularly if you’re between sizes or have one shoulder slightly higher than the other (which is surprisingly common). A few millimetres of strap change can transform the feel of the bra.
Removable pads and shaping
While not listed in the bullet points, the SB W PWR M SUP BRA is described as having removable pads. These add versatility: you can keep them in for extra coverage under thinner tops or remove them if you prefer a more natural feel or are doing hot yoga and want less material.
Whichever brand you choose, consider whether you like the option of removable pads, and how easy they are to take out and reinsert after washing.
Getting the right fit: why Sweaty Betty suggests sizing down
One of the most important notes in the SB W PWR M SUP BRA’s feature list is the recommendation to size down for the best fit. This tells you the bra may come up slightly generous, or that it delivers its intended support when worn a bit more firmly than your everyday bra.
When trying this or similar bras, use these checks:
- Band fit: It should sit level around your ribcage, snug but not painfully tight. If you can pull it more than a couple of inches away from your body, you may need a smaller size.
- Strap tension: Adjust so the straps support without digging in. If you rely solely on the straps for lift, the band is probably too loose.
- Cup coverage: Your bust should be fully contained with no significant bulging at the top or sides and no gaping.
- Movement test: Jump, twist, bend forward and reach overhead. The bra should stay in place with minimal bounce and no rubbing.
If you’re between sizes in Sweaty Betty’s bras, the guidance on the SB W PWR M SUP BRA suggests going down, particularly if you value firmer support for high-energy classes.
For deeper fit notes, you can check our hands-on review of the SB W PWR M SUP BRA, which explores comfort and sizing in more detail.
Styling your sports bra: building an outfit around your training
Performance is priority, but it’s completely reasonable to want your gym kit to look good too. The SB W PWR M SUP BRA’s Nerine Pink colour and contour seamlines are designed to match the brand’s Power High Waist Leggings, making it easy to create a coordinated set for classes or studio sessions.
Layering smartly will help you move from warm-up to cool-down in comfort. Here’s how some closely related pieces from the same brand can build a versatile workout wardrobe.
Medium impact tank tops for extra coverage
If you like the support of a medium bra with the simple look of a vest, a tank-style option can be ideal. The SWEATY BETTY Women’s Power Medium Impact Tank Top blends the support concept of the Power range with a built-in top, easing concerns about coverage while you move through burpees or sun salutations.
Tank designs are especially handy if you go straight from the studio to the café and prefer not to add another layer.
Throw-on layers for before and after class
After a sweaty session, your core temperature can dip quickly once you hit the cool air outside. A soft, insulating layer over your sports bra prevents chills and keeps muscles warm while you stretch or travel home.
The SWEATY BETTY Women’s After Class Funnel Neck Sweatshirt is designed exactly for this moment. Its funnel neck adds extra cosiness after class and pairs easily with a medium support bra underneath. For a more classic crew look, the SWEATY BETTY Women’s Revive Crew Neck Sweatshirt gives a relaxed silhouette that works from gym to sofa.
Shorts that work with your sports bra
If you prefer shorts to leggings for hot studio sessions or summer runs, the cut and rise will influence how your whole outfit feels. The SWEATY BETTY Women’s Revive Boxy Shorts offer a looser, boxy fit that contrasts nicely with the more streamlined look of a bra like the SB W PWR M SUP BRA.
A relaxed short with a more sculpted top gives you freedom of movement, airflow and a balanced silhouette that doesn’t feel too tight all over.
Comparing the SB W PWR M SUP BRA with other Sweaty Betty Power options
Within the Power family alone there are several ways to get the support you want, and which one you choose will depend on how you like your gym outfits to feel and look.
SB W PWR M SUP BRA vs Women’s Power Medium Support Sports Bra
The SWEATY BETTY Women’s Power Medium Support Sports Bra sits very close to the SB W PWR M SUP BRA in purpose, but the detailing and cut may differ. Both are aimed at medium-impact activities, with performance fabrics and a focus on support without bulk.
If you’re torn between them, consider:
- Neckline: The SB W PWR M SUP BRA’s scoop neck may appeal if you like a more open front under lower-cut tops.
- Back detail: The T-bar looped back creates a sporty, statement look. Another Power bra might offer a more classic racerback, which some prefer for layering under certain vests.
- Colour and seamlines: Small differences in seams and colourways can make one feel more flattering on your frame than the other.
Trying on, or at least studying the back design and neckline photos closely, will help you decide which one suits your body shape and existing wardrobe.
Choosing between a bra, a tank and layering pieces
If you’re building a small but hard-working training wardrobe, think about your most common sessions and how often you want to change layers.
- Prefer minimal layers? A dedicated sports bra such as the SB W PWR M SUP BRA or the Women’s Power Medium Support Sports Bra keeps things simple under a breathable tee or on its own.
- Want all-in-one coverage? The Power Medium Impact Tank Top combines support and top in a single piece, reducing the number of straps and seams.
- Need cosy transitions? After-class pieces like the After Class Funnel Neck or Revive Crew Neck sweatshirts give you a quick warm layer over your bra.
All of these approaches share a similar performance DNA, so you can mix and match without worrying about big differences in feel or quality.
Caring for your sports bra so it keeps its support
Modern technical fabrics are brilliant at wicking sweat and stretching comfortably, but they need a little care if you want them to last. The polyamide–elastane blend in the SB W PWR M SUP BRA is tough, yet still sensitive to heat and harsh detergents.
- Wash cool: Use a cool, gentle cycle to preserve elasticity and colour, especially with bright shades like Nerine Pink.
- Avoid fabric softener: It can clog fibres and reduce sweat-wicking performance.
- Use a wash bag: Pop your bra in a lingerie bag to protect straps and any delicate seamlines.
- Air dry: Lay flat or hang to dry away from direct heat; high tumble-dryer temperatures can damage elastane.
- Rotate: Try not to wear the same bra for consecutive intense sessions so the fibres can recover.
Look out for any changes in fit, such as a looser band or less structure in the cups – these are signs it may be time to replace your bra.
Is a medium support sports bra right for you?
For many women, a medium support bra is the ideal all-rounder, especially if your routine covers varied indoor training and lower-impact outdoor activities. The SWEATY BETTY SB W PWR M SUP BRA brings together moisture management, four-way stretch and a supportive yet flattering cut, with the brand recommending you size down for a secure fit.
If you’re unsure where to start, use this guide to narrow your choices, then dive into the detailed product write-ups – from the in-depth review of the SB W PWR M SUP BRA to the focused looks at the Power Medium Support Sports Bra, Power Medium Impact Tank Top and the After Class and Revive layers. Exploring those insights will help you build a gym and outdoor wardrobe that feels as good as it performs.