Every Style of Sweaty Betty Leggings: Which Is Best for You? The Complete Guide

Sweaty Betty sells one pair of Power Leggings every 60 seconds—but with eight distinct collections spanning different activities and fits, choosing the right pair for your needs can feel overwhelming. Here's your complete rundown of every style.

I'll be honest—when I first encountered Sweaty Betty's legging range, I was baffled by the sheer variety. Power? Zero Gravity? Ultimate Studio? Super Soft? It felt like learning a new language. But after years of testing activewear and speaking with countless women about their workout gear, I've decoded exactly what makes each collection unique and which one deserves your money.

Let's cut through the marketing jargon and get to the truth about what works, what doesn't, and which pair will genuinely serve your lifestyle.

Power Leggings: The Bestselling All-Rounder

Best for: Everything—gym, running, strength training, yoga, cycling, and even post-workout coffee

The Power Leggings are Sweaty Betty's flagship style, and they've earned that status honestly. These are genuinely versatile leggings that perform brilliantly across multiple activities without being spectacular at any single one. Think of them as the reliable friend who's good at everything rather than the specialist who excels at one thing.

The fabric strikes that difficult balance between supportive compression and all-day comfort. They're made from a polyamide elastane blend that's sweat-wicking, quick-drying, and impressively durable. The high-waisted design sits just above your belly button with a continuous drawcord that actually stays tied (revolutionary, I know). The bum-sculpting seams aren't just marketing fluff—they genuinely create a flattering silhouette.

Crucially, they're 80-90% squat-proof depending on the colour or pattern. Translation: you won't accidentally flash everyone during downward dog, though darker colours offer more coverage. The back features a zipped pocket for keys and essentials, plus a drop-in leg pocket that fits a phone with case.

The real genius of Power Leggings? They're comfortable enough to wear all day. As someone who spends significant time in activewear, this matters enormously. You can legitimately wear these for a morning run, strength session at the gym, and errands afterwards without feeling restricted or needing to change.

Sizing: True to size. If between sizes, size down for compression. Available in XXS to XXL (UK 6-20), in both full-length and 7/8 length.

Zero Gravity Leggings: The Runner's Dream

Best for: Running, particularly long distances

If Power Leggings are the generalist, Zero Gravity Leggings are the running specialist. These are more compressive than Powers, with lighter-weight fabric that offers UV 40+ protection—genuinely useful for summer training.

The compression is noticeable without being restrictive. They stay absolutely put during runs with zero distractions—no riding up, no chafing, no constant adjustment. The fabric wicks sweat brilliantly and dries remarkably fast. You'll finish runs with visible sweat patches, but they'll dry quickly rather than staying damp and uncomfortable.

The bum-sculpting technology creates a flattering fit that somehow makes your legs look longer. Practical features include a zipped back pocket (perfect for gels and keys) and a drop-in leg pocket for your phone. The drawcord waistband sits comfortably above the belly button.

One important note: these come in 7/8 length (which reads as full-length if you're under 5'3") and full length for taller runners. Getting the right length matters enormously for running leggings—too long and you're constantly adjusting, too short and you look oddly cropped.

The fabric feels noticeably lighter than Power Leggings, which is brilliant for running but makes them less ideal for gym sessions where you want more substantial coverage and support.

Sizing: True to size with compressive fit. Available in XXS to XXL in two length options.

Super Soft Leggings: Buttery Comfort

Best for: Yoga, Pilates, lounging, and anyone prioritising comfort over maximum compression

The clue is in the name—these are crafted from Sweaty Betty's softest fabric ever. If you've ever tried Alo Yoga's Airlift leggings or Lululemon's Align collection, you'll understand the appeal of buttery-soft, barely-there activewear. The Super Soft collection delivers that same velvety texture whilst maintaining enough compression to feel supported.

Don't let the soft fabric fool you into thinking these aren't functional. They're still sweat-wicking, compressive, and approximately 90% squat-proof. The bum-sculpting seams create a flattering silhouette, whilst leg-lengthening design details make your legs appear longer.

These excel at yoga and Pilates where you need freedom of movement without restriction. The high-waisted cut includes an internal drawcord for adjustable fit. They're also genuinely comfortable for all-day wear—perfect for work-from-home days when you want to feel put-together without sacrificing comfort.

The main trade-off? They're less durable than Power or Zero Gravity styles. That soft fabric won't withstand heavy gym use or frequent washing quite as well. Treat these as your gentle-use leggings rather than your heavy-duty workout gear.

Sizing: True to size. Available in full-length and 7/8 length in sizes XXS to XXL.

Ultimate Studio Leggings: High Compression Luxury

Best for: Studio workouts, yoga, Pilates, and anyone wanting maximum compression with luxury feel

Ultimate Studio Leggings sit at the premium end of Sweaty Betty's range, offering high compression with a velvety-soft finish. These feature a super high waist that provides genuine core support—you'll feel held in without any uncomfortable digging or rolling.

The compression is noticeably firmer than other styles, which some women love and others find too restrictive. The strategic seamlines are designed to make your legs look longer, creating a genuinely flattering silhouette. The fabric is ultra-stretchy yet supportive, moving with you through every pose and transition.

These leggings photograph beautifully, which matters if you're teaching classes or posting workout content. The clean aesthetic and high-quality finish look expensive—because they are. Available in both solid colours and eye-catching prints like leopard.

The ultra-stretchy fabric locks you in during high-intensity movement whilst the sweat-wicking technology regulates body temperature for comfortable workouts. They transition beautifully from studio to street, looking polished enough to wear with an oversized coat and trainers for that off-duty model aesthetic.

Sizing: True to size but runs slightly small due to high compression. Consider sizing up if between sizes. Available in 7/8 and full-length.

Therma Boost Leggings: Winter Warriors

Best for: Cold-weather running, winter workouts, outdoor training

When temperatures drop, Therma Boost Leggings become essential. These feature a brushed fleece-feel lining that provides genuine warmth without bulk. Part of Sweaty Betty's innovative HeatProtect collection, they offer temperature-regulating and sweat-wicking protection in all elements.

The updated version uses 78% recycled fabric that's stretchy and sweat-wicking. The high elasticated waist stays put as you move, even during intense activity. Practical details include two side pockets, one back zip pocket, and reflective seam detailing for visibility during dark winter runs.

What's brilliant about these leggings is they keep you warm without making you overheat during exercise. The thermal insulation works, but the breathable fabric prevents that clammy, overheated feeling you get with inferior thermal gear. They're soft against the skin despite the fleece lining.

Women consistently report these lasting for years—one reviewer mentioned replacing her pair after six years of daily use. The quality is exceptional, though some note recent versions feel slightly thinner than older iterations (possibly due to improved fabric technology rather than cost-cutting).

One consideration: they run slightly short. If you're 5'9" or taller, expect them to sit just above your ankles rather than at full length. For petite women under 5'3", the full-length style works perfectly.

Sizing: True to size initially, though they may feel snug for the first couple of wears before relaxing slightly. Available in full-length and 7/8 length.

All Day Leggings: Casual Comfort

Best for: Everyday wear, light workouts, lounging, running errands

All Day Leggings are designed for women who live in activewear but aren't necessarily heading to intense workouts. These prioritise comfort and wearability over maximum performance features.

The fabric is softer and less compressive than Power or Zero Gravity styles, making them genuinely comfortable for all-day wear. They're still sweat-wicking and feature four-way stretch, but the emphasis is on ease rather than athletic performance. Think elevated loungewear that looks polished enough for casual outings.

These work beautifully for gentle yoga, stretching, walks, or simply working from home. The high-waisted design is flattering without being restrictive. They're the leggings you'll reach for on rest days or when you want comfort without looking overly casual.

Sizing: True to size with relaxed fit. Available in multiple lengths and sizes XXS to XXL.

Athlete Leggings: Performance-Focused

Best for: High-intensity training, HIIT, circuit training, serious gym sessions

Athlete Leggings are built for women who train hard. These feature thicker fabric than Zero Gravity styles, providing more substantial coverage and support during heavy lifts and intense workouts. The high waist offers genuine core support—you'll feel locked in and supported through every movement.

The fabric is super-stretchy and sweat-wicking, designed to keep you cool and comfortable through demanding sessions. The compression is firm without being restrictive, holding everything in place during burpees, box jumps, and dynamic movements.

These are designed for women who prioritise performance over versatility. They excel at the gym but might feel overly structured for gentle yoga or casual wear.

Sizing: True to size with compressive fit. Available in standard sizing XXS to XXL.

Runner's High Leggings: Ultra-Lightweight

Best for: Running in warm weather, speed work, racing

Runner's High Leggings are the lightest, most minimal option in Sweaty Betty's range. These are designed in the brand's technical Sensitive® fabric specifically for runners who want zero distractions.

Ultra-light and ultra-compressive, these provide sweat-wicking performance without any bulk. The barely-there feel is perfect for warm-weather running or anyone who finds standard leggings too heavy for speed work.

The trade-off? They're less versatile than other styles and really are designed specifically for running. Not ideal for gym sessions or casual wear.

Sizing: True to size with very compressive fit.

How to Choose Your Perfect Pair

If you only buy one pair: Choose Power Leggings. They're genuinely versatile, comfortable enough for all-day wear, and perform well across multiple activities. The popularity isn't hype—these deserve their bestseller status.

If you're a dedicated runner: Invest in Zero Gravity Leggings. The running-specific design, lighter fabric, and compressive fit make them worth the investment if running is your primary activity.

If you prioritise comfort: Choose Super Soft Leggings for that buttery, barely-there feel. Perfect for yoga, Pilates, or anyone who finds standard athletic leggings too restrictive.

If you want maximum compression: Try Ultimate Studio Leggings. The super high waist and firm compression create genuine core support and a sculpted silhouette.

If you train in cold weather: Therma Boost Leggings are non-negotiable. The fleece lining provides real warmth without bulk or overheating.

If you live in activewear: All Day Leggings offer comfortable, wearable style for everyday life rather than intense workouts.

If you train seriously: Athlete Leggings provide the structure and support needed for heavy lifting and high-intensity training.

The Honest Truth About Sweaty Betty Quality

Sweaty Betty leggings are expensive—there's no getting around it. But the quality generally justifies the price. The fabrics are durable, the construction is excellent, and the fits are consistently reliable across styles. These are leggings that last years rather than months if you care for them properly.

That said, some long-time customers note that recent versions feel slightly different from older iterations. Whether this represents cost-cutting or improved fabric technology is debatable. What's undeniable is that Sweaty Betty leggings still outperform most high-street alternatives in terms of longevity and performance.

Care tips to maximise lifespan: wash only when needed (overwashing decreases quality), wash at 40°C on reduced spin, avoid fabric softener (it affects moisture-wicking properties), and air dry rather than tumble drying.

Where to Buy Sweaty Betty Leggings

You can purchase Sweaty Betty leggings directly from their website, but they're also stocked at several retailers:

M&S stocks selected Sweaty Betty styles including the bestselling Power and Therma Boost leggings, often with exclusive colourways.

ASOS recently started stocking Sweaty Betty, making them more accessible with ASOS's excellent returns policy and frequent promotions.

John Lewis carries a comprehensive range of Sweaty Betty activewear, including detailed buying guides to help you choose.

Bloomingdale's stocks Sweaty Betty in the US, often with international shipping options.

The Sports Edit specialises in premium activewear and offers expert guidance on choosing the right Sweaty Betty style for your needs.

Alternative Brands to Consider

If Sweaty Betty's prices feel steep, several alternatives offer comparable quality:

Lululemon offers similar quality at comparable prices. The Align collection competes directly with Super Soft styles, whilst Wunder Train leggings rival Power Leggings for versatility.

Alo Yoga provides premium leggings with excellent fabrication. Their Airlift styles offer that same buttery-soft feel as Super Soft leggings.

Girlfriend Collective delivers sustainable leggings made from recycled materials at lower price points. The compression and quality rival Sweaty Betty whilst costing significantly less.

Outdoor Voices brings playful design to performance leggings. Their 7/8 length styles work beautifully for women under 5'4" who struggle with standard full-length options.

COS offers surprisingly good activewear leggings with minimalist aesthetics. Whilst not quite matching Sweaty Betty's technical performance, they're excellent for everyday wear and gentle exercise.

Getting the Perfect Size in Sweaty Betty Leggings

Sweaty Betty generally runs true to size, but different collections have slightly different fits. Power Leggings fit differently to Ultimate Studio styles, and getting the wrong size can mean uncomfortable compression or annoying sagging.

This is where Tellar.co.uk becomes genuinely invaluable. Tellar is the UK's leading sizing tool that matches your body exactly to over 1,500 brands instantly—including Sweaty Betty.

Measure once using your bust, waist, and hip measurements, or enter an existing brand size you know fits perfectly. Then use their Store Size Lookup tool to get your precise Sweaty Betty size across all their collections.

It's completely free, requires no downloads, and works directly in your browser. No more guessing whether you need an XS or S in Power Leggings. No more ordering multiple sizes hoping one will work. Just your perfect size, confirmed, every time.

Explore the Tellar Fashion Hub

The Tellar Fashion Hub offers comprehensive, unbiased style advice from expert stylists. It's a carefully curated library filled with free posts covering every fashion question imaginable. Always honest, always independent, always free.

Looking for more activewear guidance? Check out these related posts:

Visit Tellar.co.uk today and discover how easy finding your perfect activewear size can be—plus access hundreds of free style guides written by professionals who genuinely care about helping you make informed choices.

Final Verdict

Sweaty Betty has earned its reputation for creating genuinely excellent activewear. Each legging collection serves a specific purpose, and understanding those differences helps you invest wisely rather than accumulating leggings that don't quite work.

The Power Leggings deserve their bestseller status—they're versatile, comfortable, and genuinely well-designed. But if you have specific needs (serious running, cold-weather training, maximum comfort), the specialist collections deliver superior performance in their intended areas.

Yes, they're expensive. But quality activewear that lasts years and performs reliably is worth the investment. Choose thoughtfully based on your actual activities rather than aspirational exercise goals, and you'll get genuine value from whichever style you select.

The real question isn't whether Sweaty Betty leggings are worth it—they are. The question is which collection suits your lifestyle, and hopefully this guide has made that decision significantly easier.