Pros: Comfortable Lightweight Very cushioned Big toe box Good heel lock Feels like you're barefoot Cons: Can be a bit uncomfortable after wearing for a while (for me on the top of the foot) Not the best for faster pace runs (in my opinion) Arch support is a bit too shallow for my feet I got these shoes as a daily trainer for track practice a few months back. I have been wearing them to school often and love how comfortable they are. Normally when running, I like to tie my shoes/spikes pretty tight. The tongue on these shoes have a bit of a tighter elastic part that goes across the hinge on the front of my foot, right at the top of the laces. While this does help a lot with keeping my foot secure, it does hurt a little when I tighten my shoes too much. As for daily wear, these shoes feel great. It seriously feels like wearing a sock. These shoes replaced my Pegasus 38s (I was convinced I could not find a better running shoe then my pegs) and so far they have held up very well. The biggest difference between the two pairs is that the Pegs felt like a lot faster tempo trainer than these Infinity Runs. I am a 400/800 runner in high school and our workouts normally consist of 150-300m fast pace repeats and possibly a mile or two easy run every once in a while. Comparing the two shoes, the Pegs would definitely be better for my faster workouts and the IRNs would be better for slower, longer runs (the Pegs were still great for the mile jogs).

Sustainable Materials
Nike InfinityRN 4 SE
Men's Road Running Shoes
On Clearance Sale. Buy 2 sale price items to get extra 20% off; or, buy 3 or more sale price items to get extra 30% off (total ¥10,000 or more incl. tax). Discount applied at cart.
This product is made with at least 20% recycled content by weight
Maximum cushioning provides elevated comfort for everyday runs. Experience a soft, rocker-shaped platform made with new ReactX foam underfoot and an ultra-comfortable collar and tongue for a snug feel. Plus, a water-resistant membrane was added to this version to help keep you dry.
- Shown: White/Fuchsia Dream/Blue Lightning/Black
- Style: FJ1047-100
- Country/Region of Origin: Vietnam
Nike InfinityRN 4 SE
Maximum cushioning provides elevated comfort for everyday runs. Experience a soft, rocker-shaped platform made with new ReactX foam underfoot and an ultra-comfortable collar and tongue for a snug feel. Plus, a water-resistant membrane was added to this version to help keep you dry.
Key Features
- Updated Flyknit upper and a water-resistant membrane help keep you dry
- New ReactX foam in the midsole for extra cushioning
- Waffle outsole for durable traction on the roads
- Ultra-comfortable collar and tongue for a soft, snug fit
- What’s New? New ReactX cushioning for even more comfort and a revamped upper and wider toe box.
Product Details
- Weight: Approx. 354g/ 12.5oz (Men's US 10)
- Heel-to-toe drop: 9mm
- Not intended for use as Personal Protective Equipment (PPE)
- Shown: White/Fuchsia Dream/Blue Lightning/Black
- Style: FJ1047-100
- Country/Region of Origin: Vietnam
Size & Fit
- Snug fit; we recommend ordering a half-size up
- Size Guide
Free Shipping & Returns
Returns are free for both Members and guests (only for items that are unused and within 30 days upon delivery. Exceptions apply).
About Returns
Members get free standard shipping (for guests, only for purchases over ¥15,000) and discounted expedited shipping.
Join Us or Sign In
How This Was Made
- This product was responsibly designed utilizing recycled materials from post-consumer and/or post-manufactured waste. One of our biggest steps on our journey to zero carbon and zero waste is in choosing our materials because they account for more than 70% of any product’s footprint. By reusing existing plastics, yarns, and textiles, we significantly reduce our emissions. Our goal is to use as much recycled materials as possible without compromising on performance, durability and style.
- Learn more about our Move to Zero journey towards zero carbon and zero waste, including how we're working to design product with sustainability in mind and help protect the future of where we live and play.
Reviews (11)
*Includes incentivized reviews/ratings.
Reviews (11)
*Includes incentivized reviews/ratings.
4.5 Stars
Great slower pace running shoes or even just daily wear
Will95532987 - Jan 18, 2024
Get half size bigger very comfortable
codym906063172 - Dec 31, 2023
Definitely order one half size larger than you would normally would get. I bought 5 pairs of the infinity react 3 and love them. The 4's are great, I am not sure they have as much foam, but they are very comfortable.
Best Infinity Run yet!
Vitaly67 - Dec 04, 2023
This 4th iteration of the Infinity Run is the best one yet. It’s comfortable, stable, and wears much better than version 2 and 3. Definitely a great running shoe.

Nike InfinityRN 4 SE
More Info
Snug fit; we recommend ordering a half-size up
