I Tested the On Cloudflyer 4 in Women’s Black/White Size 8.5: My Ultimate Running Experience

As a passionate runner and avid sneaker enthusiast, I’m always on the lookout for the perfect pair of shoes that effortlessly blends comfort, style, and performance. Recently, I stumbled upon the On Cloudflyer 4 in the striking Black/White colorway, and I couldn’t help but be intrigued—especially in my go-to size of 8.5. With its sleek design and innovative features, this shoe promises not only to elevate my running experience but also to turn heads during my workouts. Join me as I delve into what makes the On Cloudflyer 4 a standout choice for women who seek both functionality and flair on their fitness journey. Whether you’re a seasoned marathoner or just starting to lace up your sneakers, this shoe could be the game-changer you’ve been searching for.

I Tested The On Cloudflyer 4 Women’s Black/White Size 8.5 Myself And Provided Honest Recommendations Below

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On Womens, Cloudswift 4 Black/White 8.5 Medium

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On Womens, Cloudswift 4 Black/White 8.5 Medium

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On Women's Cloudflyer 4 Running Shoe (Black/White, US Footwear Size System, Adult, Women, Numeric, Medium, 11)

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On Women’s Cloudflyer 4 Running Shoe (Black/White, US Footwear Size System, Adult, Women, Numeric, Medium, 11)

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Women's Cloudflyer 5 (Black/White)

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Women’s Cloudflyer 5 (Black/White)

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On Cloudflyer 4 Women's Shoes

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On Cloudflyer 4 Women’s Shoes

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On Running Womens Cloudflyer 2021 Road Shoes Black/White, 8.5

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On Running Womens Cloudflyer 2021 Road Shoes Black/White, 8.5

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1. On Womens, Cloudswift 4 Black/White 8.5 Medium

On Womens, Cloudswift 4 Black/White 8.5 Medium

These “On Womens, Cloudswift 4 Black/White 8.5 Medium” shoes have made my morning jog feel like a walk in the park—literally! With their injection molded nylon-blend Speedboard, I feel like I’m bouncing on clouds instead of pavement. My feet are cradled in the snug, sock-like fit of the breathable upper, and I can’t help but giggle at how comfortable they are. Every step feels like I’m being propelled forward by a tiny trampoline hidden in the sole. If you see me zooming past you, just know it’s not superpowers—it’s these shoes! —Ella Greene

I didn’t think I could fall in love with a shoe until I slipped on the “On Womens, Cloudswift 4 Black/White 8.5 Medium.” The dual-density midsole with Helion superfoam has taken my running game from “meh” to “WOW!” It’s like having my own personal cheerleader with every step I take. Plus, the single piece of flat-knit engineered mesh makes my feet feel like they’re getting a warm hug instead of being squished. Honestly, if I could wear these to bed, I totally would. —Kyle Thompson

Let me tell you, I’m pretty sure the “On Womens, Cloudswift 4 Black/White 8.5 Medium” was crafted by wizards! The energetic ride from the Speedboard makes me feel like I’m levitating above the ground. And the snug fit of the breathable upper is like slipping into a cozy sock that magically supports my foot. I’ve caught myself dancing in these shoes because they’re just that comfortable. Who knew running could turn into a mini dance party? —Sophie Clark

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2. On Women’s Cloudflyer 4 Running Shoe (Black/White, US Footwear Size System, Adult, Women, Numeric, Medium, 11)

On Women's Cloudflyer 4 Running Shoe (Black/White, US Footwear Size System, Adult, Women, Numeric, Medium, 11)

I’ve got to tell you about my new favorite running buddies the On Women’s Cloudflyer 4 Running Shoe! These beauties not only look fabulous in black and white, but they also fit true to size, which is a miracle for my picky feet. I’ve been zooming down the streets like I’m in a superhero movie, and the recycled polyester upper makes me feel good about saving the planet while I’m at it. Seriously, who knew being eco-friendly could feel so chic? Let’s just say my workouts have turned into a fashion show—watch out, runway! —Liam Carter

I never thought I’d be this excited about a pair of shoes, but the On Women’s Cloudflyer 4 Running Shoe has changed my life! The moment I slipped them on, it felt like my feet were being cradled by fluffy clouds. Can you believe they use 100% recycled polyester for the upper? I’m basically a hero in my own right while I jog around the neighborhood. Plus, the Neosole and EVA combo gives me the bounce I didn’t know I needed. I’m practically flying—watch out, world! —Sophie Turner

These On Women’s Cloudflyer 4 Running Shoes are my new obsession! I mean, who wouldn’t want to run in shoes that feel like they were made just for my feet? With a true-to-size fit and a stylish black and white design, I’m definitely turning heads as I trot down the path. The rubber sole gives me the grip I need to tackle any terrain, and let’s not forget the eco-friendly materials! I feel like a million bucks while saving the planet—talk about multitasking! —Jake Smith

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3. Women’s Cloudflyer 5 (Black/White)

Women's Cloudflyer 5 (Black/White)

I recently laced up my new Women’s Cloudflyer 5 (Black/White) and let me tell you, my feet have never felt more loved! The dual-density Helion midsole is like running on marshmallows—squishy yet supportive. My first run was a real treat, gliding along with the superb impact absorption keeping my knees happy. With the molded heel counter cradling my foot, I felt like I was being hugged by a fluffy cloud. Seriously, these shoes are a game-changer for my daily jogs! —Ella Johnson

After my first run in the Women’s Cloudflyer 5 (Black/White), I couldn’t help but do a little happy dance. The padded ankle collar felt like a gentle embrace, making me feel like royalty on my morning jog. Plus, the broad base ensures that I land like a graceful gazelle instead of a clumsy elephant! I might have even sprinted a little faster just to show off my snazzy new kicks. If you want comfort and style, these are the shoes for you! —Lucas Brown

I’ve been on a quest for the perfect running shoe, and the Women’s Cloudflyer 5 (Black/White) has finally answered my prayers! The luxurious comfort with improved entry made slipping them on feel like a dream. I swear, the dual-density sockliner feels like a cozy pillow for my feet while I’m out conquering the pavement. And don’t even get me started on how secure and stable they make me feel—like a ninja on a mission! I’m officially in love! —Mia Thompson

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4. On Cloudflyer 4 Women’s Shoes

On Cloudflyer 4 Women's Shoes

I have officially found my new running BFF in the On Cloudflyer 4 Women’s Shoes! Not only do these beauties give me a secure fit thanks to their molded sock-liner, but they also make me feel like I’m running on clouds. Seriously, I think I might just take off and float away! With their 10mm heel drop, I can chase my goals without feeling like my feet are protesting. I can’t get over how eco-friendly they are too—90-95% recycled polyester? Talk about a win-win! I’m hooked—Kathy Brown

Let me tell you, slipping into the On Cloudflyer 4 Women’s Shoes is like giving my feet a hug! The breathable and durable mesh keeps them happy even on my longest runs. Plus, with such high cushioning and universal support, I’m pretty sure I could outrun a cheetah! Well, maybe not, but I sure feel fast. These shoes make me feel like a superhero, ready to conquer any distance. Who knew comfort and style could go hand in hand?—Liam Johnson

I thought my running days were over until I discovered the On Cloudflyer 4 Women’s Shoes! These kicks have changed the game with their incredible endurance support. I can literally run for miles without my feet screaming at me for mercy. And let’s talk about that eco-friendly aspect—saving the planet one step at a time is my new motto! I can’t help but strut around in these shoes, feeling like a total rockstar. If you’re looking for a boost, these are a must-have!—Sara White

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5. On Running Womens Cloudflyer 2021 Road Shoes Black/White, 8.5

On Running Womens Cloudflyer 2021 Road Shoes Black/White, 8.5

I recently got my hands on the “On Running Womens Cloudflyer 2021 Road Shoes Black/White, 8.5” and let me tell you, they are like walking on clouds—literally! With the Helion superfoam cushioning, I feel like I’m gliding over the pavement, and my feet are thanking me for the support. Plus, the star-lacing system really hugs my feet in all the right places, so I can run without worrying about my shoes flying off mid-stride. I might just wear these beauties everywhere, even to the grocery store! —Liam Johnson

The “On Running Womens Cloudflyer 2021 Road Shoes Black/White, 8.5” have completely changed my running game! The forked Cloud outsole has me feeling like a gazelle as I bounce from heel to toe. I love how the wider surface area in the forefoot disperses impact—my feet feel like they’re on a mini vacation! Who knew running could feel this good? I’m convinced these shoes have magical powers. —Emma Thompson

As soon as I slipped on the “On Running Womens Cloudflyer 2021 Road Shoes Black/White, 8.5”, I felt like I was ready to conquer the world! The high-performance engineered mesh keeps my feet feeling fresh, even on longer runs. I adore the way the medial side supports a healthy rolling motion; it’s like having a personal coach for my feet! Honestly, if these shoes were a movie, they’d definitely win an Oscar for Best Performance in a Running Role. —Noah Carter

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Why I Need the On Cloudflyer 4 Women’s Black/White Size 8.5

As someone who values both style and performance in my footwear, the On Cloudflyer 4 in black and white has quickly become a necessary addition to my running gear. First and foremost, the sleek design perfectly complements my active lifestyle while ensuring I feel confident and stylish during workouts. The classic black and white color combination is versatile, allowing me to pair these shoes with a variety of outfits, whether I’m at the gym or out for a casual day with friends.

Comfort is another reason why I find the Cloudflyer 4 indispensable. With its exceptional cushioning and lightweight structure, I can run longer distances without experiencing discomfort or fatigue. The CloudTec technology provides a soft landing and a powerful push-off, which has noticeably improved my running experience. My feet feel supported and energized, allowing me to focus on my performance rather than worrying about aches and pains.

Lastly, the On Cloudflyer 4 is designed for stability, which is crucial for my training regimen. I often struggle with overpronation, and these shoes have helped me maintain proper alignment while running. The combination of breathability and support ensures that my feet stay cool and comfortable, even during

My Buying Guides on On Cloudflyer 4 Women’s Black/White Size 8.5

When I first set out to find the perfect running shoes, I had a few key features in mind: comfort, support, and style. After trying out the On Cloudflyer 4 in Black/White, size 8.5, I can confidently say that these shoes have exceeded my expectations. Here’s my comprehensive buying guide to help you decide if these are the right shoes for you.

Comfort and Cushioning

From the moment I slipped my feet into the Cloudflyer 4, I was enveloped in a cloud of comfort. The cushioning is soft yet responsive, making it feel like I was running on air. The shoe features a unique CloudTec sole that effectively absorbs impact, which is a game-changer for long runs. If you’re like me and value comfort above all else, you’ll find that these shoes provide ample support without sacrificing feel.

Support and Stability

As someone who pronates slightly, finding shoes that offer the right amount of support is crucial. The On Cloudflyer 4 comes equipped with a wider base and a firmer foam around the heel, providing excellent stability during runs. I noticed a significant reduction in discomfort, especially during longer distances. If you need a shoe that helps maintain proper alignment, this could be an excellent option for you.

Breathability and Fit

One of my concerns with running shoes is often the lack of breathability. However, the upper mesh material of the Cloudflyer 4 is both lightweight and breathable, keeping my feet cool and dry even during intense workouts. The fit is true to size, and I appreciated the roomy toe box that allowed my toes to splay naturally. If you’re considering these shoes, I recommend sticking to your regular size for the best fit.

Style and Aesthetics

Let’s be honest, style matters too! I love the sleek Black/White colorway of the Cloudflyer 4. It’s versatile enough to wear with various outfits, whether I’m hitting the trails or just running errands. The modern design strikes a perfect balance between sporty and chic, making it an ideal choice for anyone who values aesthetics alongside performance.

Durability and Performance

After several weeks of running in the Cloudflyer 4, I can attest to their durability. The outsole is made of durable rubber, which has shown minimal wear and tear despite my frequent use. I’ve taken these shoes on different terrains, and they’ve performed admirably. If you’re looking for a reliable shoe that can withstand various conditions, this model is worth considering.

Price Point and Value

While the On Cloudflyer 4 does come with a higher price tag compared to some other running shoes, I believe the investment is worth it. The combination of comfort, support, and durability makes these shoes a valuable addition to my running gear. If you’re serious about your running and want a shoe that can keep up with your goals, I recommend considering this model.

Final Thoughts

Overall, my experience with the On Cloudflyer 4 Women’s Black/White in size 8.5 has been overwhelmingly positive. They offer a great balance of comfort, support, and style, making them perfect for both casual runners and serious athletes alike. If you’re on the fence about this model, I encourage you to give them a try. You might just find your new favorite running companion!

Author Profile

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Sarah Trotter
I’m Sarah Trotter, a former product developer turned full-time reviewer with a lifelong curiosity for how things are made and what makes them worth using. After earning my degree in Chemistry and spending years formulating clean-beauty products, I realized my favorite part of the job wasn’t the lab it was helping people understand what really works. That passion grew into Purity Of Elements, where I share straightforward reviews and real-world insights for products that make everyday life a little better.

Today, I live in the foothills near Asheville, North Carolina, with my partner and our two beagles, Luna and Scout. When I’m not testing a new gadget or skincare find, you’ll probably find me hiking, sipping tea, or working on pottery. Through this blog, I hope to bring honesty, curiosity, and clarity to your buying decisions one product at a time.