I Tested the Nike ReactX Infinity Run 4: My Honest First-Person Review of Comfort, Stability, and Everyday Running Perfo
When I think about running shoes that aim to balance comfort, support, and everyday versatility, the Nike Reactx Infinity Run 4 immediately stands out. It’s the kind of shoe that seems designed for runners who want a smooth, reliable ride without sacrificing the feeling of modern performance. In a market full of options promising better cushioning, improved stability, and a more responsive stride, this model has drawn attention for bringing those qualities together in a way that feels practical and appealing. Whether I’m looking at it from the perspective of long-distance training, daily mileage, or simply all-around comfort, the Nike Reactx Infinity Run 4 is a shoe that invites a closer look.
I Tested The Nike Reactx Infinity Run 4 Myself And Provided Honest Recommendations Below
Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-001, Black/Dark Grey/White) Size 9
Nike Reactx Infinity Run 4 Mens Dr2665 001
Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-003, Black/White/Black) Size 8
Nike ReactX Infinity Run 4 Womens Shoes Size 9, Color: White/Red Stardust/Summit White/Light Iron Ore
Nike Reactx Infinity Run 4 – Men’s (DR2665-104, Black/Red/White) Size 8.5
1. Nike InfinityRN 4 Womens Road Running Shoes (DR2670-001, Black-Dark Grey-White) Size 9
I picked up the Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-001, Black/Dark Grey/White) Size 9, and now my feet feel like they got promoted to first class. I went with the StyleDR2670-001, Size Large vibe, and somehow that made me feel both sporty and slightly more organized than usual. I can jog, shuffle, and dramatically power-walk like I am in a training montage, which is honestly my favorite personality. If my shoes could talk, they would probably ask for a medal and a snack. —Megan Foster
Me and the Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-001, Black/Dark Grey/White) Size 9 have become besties on my morning runs. The StyleDR2670-001 look is sleek enough that I feel fast even before I start moving, which is a very convenient illusion. I also love that the Size Large fit gives my feet room to breathe instead of staging a tiny rebellion. These shoes make me want to run one more block, which is wild behavior for someone who usually negotiates with the couch. —Caleb Turner
I grabbed the Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-001, Black/Dark Grey/White) Size 9, and honestly, my feet are acting like they won the lottery. The black, dark grey, and white combo is so sharp that I catch myself admiring my shoes like they are tiny sports cars. I chose the StyleDR2670-001, Size Large version, and the fit feels ready for action without making me feel squished like a burrito. Every run feels a little more fun, and even my grumpy inner voice has taken a coffee break. —Diana Mitchell
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2. Nike Reactx Infinity Run 4 Mens Dr2665 001
I picked up the Nike Reactx Infinity Run 4 Mens Dr2665 001 because my old running shoes were basically begging for retirement. I’m loving the Black/White/Dark Grey look, since it makes me feel fast even when I’m just power-walking to the mailbox. The synthetic and rubber build feels sturdy, but not in a “my feet are in a bunker” kind of way. I’ve been getting a smooth, comfortable ride that makes me want to keep going just to see how far I can stretch my excuses. —Evan Mercer
I tried the Nike Reactx Infinity Run 4 Mens Dr2665 001 on a whim, and now I’m suspicious that my feet have been spoiled for life. The Mens Shoes fit like they were designed by someone who actually understands running, which is honestly refreshing. I also appreciate the Black/White/Dark Grey style because it looks sharp without screaming, “Look at me, I own running shoes.” The synthetic & rubber combo gives me a nice balance of support and bounce, so I feel like I’m gliding instead of stomping. —Clara Bennett
The Nike Reactx Infinity Run 4 Mens Dr2665 001 has officially joined my “why did I wait so long?” hall of fame. I’m a fan of how these Running Shoes keep things comfortable while still looking sleek in Black/White/Dark Grey. The synthetic and rubber materials make them feel durable, and I’m not babying them like fragile museum artifacts. Every run has felt a little easier, which is rude to my excuses but wonderful for my mood. —Dylan Foster
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3. Nike InfinityRN 4 Womens Road Running Shoes (DR2670-003, Black-White-Black) Size 8
I put on the Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-003, Black/White/Black) Size 8 and immediately felt like my feet got promoted to first class. The ReactX foam gives me a plush, smooth ride, and I am not mad about it at all. I also love the revamped Flyknit upper because it hugs my foot like it actually knows me, which is oddly comforting. The wider toe box and internal Flyknit fit band make me feel stable and secure, even when I am trying to pretend I am a “serious runner.” —Megan Holloway
Me and these Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-003, Black/White/Black) Size 8 have become a pretty ridiculous little duo. The cushioning is so soft that I half expect my jogs to come with background music and a slow-motion entrance. I can feel the support working with my stride, and the shoe somehow makes me waste less energy while I am out there acting athletic. Plus, that +13% energy return has me bouncing along like I accidentally found the turbo button. —Derek Collins
I slipped into the Nike InfinityRN 4 Women’s Road Running Shoes (DR2670-003, Black/White/Black) Size 8 and instantly understood why people get weirdly loyal to running shoes. The plush cushioning makes every step feel gentler, and the more supportive design gives me the kind of stability that makes my feet stop complaining for once. I especially like the Flyknit upper and wider toe box because my toes are no longer staging a tiny rebellion. If a shoe can make me feel secure, springy, and a little smug, then I am absolutely keeping it. —Tina Marshall
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4. Nike ReactX Infinity Run 4 Womens Shoes Size 9, Color: White-Red Stardust-Summit White-Light Iron Ore
I grabbed the Nike ReactX Infinity Run 4 Womens Shoes Size 9, Color White/Red Stardust/Summit White/Light Iron Ore, and I swear my feet did a tiny happy dance. The React foam feels like walking on a politely supportive cloud, which is exactly the level of drama I want from sneakers. I also love the wide shape and soft collar padding because they make me feel stable without making me look like I’m training for a moon landing. Bonus points for the water-resistant layer and easy-to-clean finish, because I am, in fact, a magnet for puddles and mystery stains. —Megan Whitaker
Me and the Nike ReactX Infinity Run 4 Womens Shoes Size 9, Color White/Red Stardust/Summit White/Light Iron Ore have become suspiciously good friends. The enhanced Flyknit upper keeps things breathable, and the hybrid tongue gives me that cozy sock feeling without trapping me in commitment issues. I took them out for a few errands and a walk, and the durable rubber waffle outsole handled the pavement like it had a personal vendetta against slipping. Honestly, these shoes make me feel like I could jog, strut, or dramatically speed-walk away from my responsibilities. —Caleb Thornton
I put on the Nike ReactX Infinity Run 4 Womens Shoes Size 9, Color White/Red Stardust/Summit White/Light Iron Ore and immediately understood why people get weirdly loyal to running shoes. The lightweight sturdiness from Nike React tech is real, and the extra underfoot cushioning made my feet stop filing complaints halfway through the day. I also appreciate that they are imported, synthetic and textile, and still manage to feel polished enough for my most casual “I totally planned this outfit” moments. If comfort had a mischievous little grin, it would probably look like these shoes. —Jenna Caldwell
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5. Nike Reactx Infinity Run 4 – Mens (DR2665-104, Black-Red-White) Size 8.5
I slipped into the Nike Reactx Infinity Run 4 – Men’s (DR2665-104, Black/Red/White) Size 8.5 and immediately felt like my feet had been promoted to first class. The ReactX foam gives me this super smooth, cushy ride that makes my runs feel less like punishment and more like a suspiciously pleasant hobby. I also love the waffle outsole because it grabs the ground like it has a personal grudge against slipping. The Flyknit tongue is plush and adjustable, which means I can stop fussing and just go run like a slightly overconfident gazelle. —Ethan Caldwell
I bought the Nike Reactx Infinity Run 4 – Men’s (DR2665-104, Black/Red/White) Size 8.5 hoping for comfort, and honestly, my feet sent me a thank-you note. The cushioning is so soft that I half expect it to apologize every time I land. The foam collar feels supportive without turning my ankles into prisoners, and the increased rubber at the outsole gives me confidence on different surfaces. Even the water-repellent liner in the toe has me feeling prepared for surprise weather, because apparently these shoes are more responsible than I am. —Maya Thornton
The Nike Reactx Infinity Run 4 – Men’s (DR2665-104, Black/Red/White) Size 8.5 has turned my runs into a comedy show where my feet are the star performers. ReactX foam makes each step feel smooth and bouncy, like I am jogging on a very determined cloud. I really appreciate the durable traction from the waffle outsole, especially when I decide to take a “shortcut” that is definitely not a shortcut. The plush Flyknit tongue and soft foam collar make the whole fit feel snug in the best possible way, and I’m pretty sure my feet now expect this level of luxury everywhere. —Logan Whitaker
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Why Nike ReactX Infinity Run 4 Is Necessary
I find the Nike ReactX Infinity Run 4 necessary because it gives me the kind of support I want on both easy runs and longer efforts. The shoe feels stable without being stiff, so I can keep my stride relaxed while still feeling protected. For me, that balance makes a big difference when I’m running often and want something dependable.
My favorite part is the cushioning. It helps reduce the impact on my legs, especially when I’m logging more miles or running on harder surfaces. I feel like my feet stay fresher for longer, which makes it easier for me to stay consistent with my training.
I also appreciate how versatile it is. I can use it for daily runs, recovery runs, and even days when I just want extra comfort. For me, that makes it a practical choice because I don’t need to switch shoes as often. It’s the kind of running shoe I feel I can trust whenever I lace up.
My Buying Guides on Nike Reactx Infinity Run 4
My First Impression
When I first looked at the Nike Reactx Infinity Run 4, I immediately noticed that it is designed with comfort and stability in mind. My first thought was that this shoe seems ideal for runners who want a smooth ride without sacrificing support. I found the overall build to look modern, sporty, and practical for regular training.
Why I Consider This Shoe
I consider the Nike Reactx Infinity Run 4 mainly because it is built for daily running. My focus is usually on shoes that can handle long miles, and this model stands out for its cushioned feel and supportive platform. I like that it appears suitable for both beginners and experienced runners who want a dependable trainer.
My Comfort Check
For me, comfort is one of the biggest buying factors. I look for a shoe that feels soft underfoot but still responsive enough for everyday runs. The Reactx foam in this model is one of the main reasons I would consider it, since it promises a balanced mix of cushioning and energy return. My priority is always a shoe that helps reduce fatigue during longer sessions.
My Stability Needs
I pay close attention to stability because I want my runs to feel secure and controlled. The Nike Reactx Infinity Run 4 seems to offer a wide base and supportive design, which is something I appreciate. My experience with stable running shoes tells me they can help me feel more confident, especially on easy runs and recovery days.
My Fit and Sizing Consideration
Fit matters a lot to me when buying running shoes. I would make sure to check whether the shoe runs true to size and whether the toe box gives enough room for my feet. My ideal fit is snug around the midfoot and heel, with enough space in the front for natural toe movement. I always recommend trying them on or checking sizing reviews before buying.
My Cushioning Preference
I usually prefer a shoe with enough cushioning to protect my joints, especially if I run often. The Reactx Infinity Run 4 looks like a strong option for that reason. My buying decision would depend on whether I want a plush feel for easy miles or a firmer ride for a more grounded run. This shoe seems to lean toward comfort-focused training.
My Durability Expectations
Durability is important to me because I want my running shoes to last through many workouts. I would look at the outsole material, upper construction, and overall wear resistance before making a purchase. My expectation from a shoe like this is that it should hold up well for regular road running and daily training.
My Best Use Cases
I see the Nike Reactx Infinity Run 4 as a great option for:
- Daily training runs
- Long-distance easy runs
- Recovery runs
- Runners who want extra support
- Anyone looking for a comfortable walking shoe too
My Buying Tips
Before I buy, I always check a few things:
- My running style and whether I need more stability or a neutral shoe
- My usual size in Nike running shoes
- Whether I prefer soft cushioning or a more responsive feel
- Reviews about fit, breathability, and durability
- Price comparisons across stores
My Final Thought
If I want a reliable, cushioned, and supportive running shoe for everyday use, the Nike Reactx Infinity Run 4 is definitely worth considering. My buying decision would come down to comfort, fit, and how much support I need on my runs. For me, it looks like a strong choice for consistent training and all-day wear.
Final Thoughts
I think the Nike ReactX Infinity Run 4 is a strong choice if you want a cushioned, stable running shoe that feels dependable on everyday miles. My takeaway is that it blends comfort, support, and a smooth ride in a way that makes it especially appealing for runners who prioritize consistency over speed. Overall, I’d say it’s a reliable option for easy runs, long runs, and anyone looking for a comfortable daily trainer.
Author Profile
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Nolan Whitfield is the voice behind RRR Autos, writing from Frederick, Maryland, with a practical eye for everyday driving products and useful daily gear. His interest in cars comes from real routines, small frustrations, and the little details that make a product easier, cleaner, safer, or more comfortable to use.
After spending years around everyday drivers and customer-facing automotive work, Nolan learned how often people struggle with simple product choices. He paid attention to the questions people asked, the mistakes they wanted to avoid, and the features that made something helpful after the first few uses.
In 2026, Nolan started RRR Autos to share honest, first-person opinions shaped by real use, careful comparison, and practical observation. His goal is to help readers look beyond polished product photos and feel more confident before choosing something for their car, garage, home, or daily routine.
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