Wednesday, June 17, 2015

Altra The One 2.5 Review

I started running in Altra shoes about a year ago.  My first pair were the Instinct 2’s.  I instantly fell in love with them.  The wide toe box, zero drop design, light weight, and plenty of cushioning kept the Instinct 2 as one of my favorite shoes for quite a while.  I have also tested the Altra Paradigm, Instinct 3, and now I am reviewing The One 2.5’s. 

The One 2.5’s are a light weight shoe that was made for speed.  The funny thing is that they have enough cushion for your longer runs as well.  It seems like Altra is on the right track.  Each of their shoes is improving upon the previous model, which isn’t always the case with other companies. 

Get ready for this.  They weigh in at 5.2 ounces…  That is insane, especially considering that there is actually some cushioning there.  Altra was able to cut some weight by only having a harder rubber material in certain areas on the bottom of the shoe (outsole).  While I was concerned with this at first, my worries were quickly squashed.  I have run over 30 miles in these shoes so far and the exposed Dual Layer EVA midsole still looks as good as the first time I put them on (besides being dirty). 

The midsole is made up of the Dual Layer EVA with an A-Bound top layer.  A-Bound is a responsive cushioning that protects your feet as your foot impacts the ground and then rebounds to add spring to each step.  It’s always nice to have a little bit of a boost, especially when you are tired.

Very comfortable
Zero heel drop
Wide toe box.
Very light 5.2 ounces
Plenty of cushion
Great price ($100 at

With the exposed midsole, The One 2.5 might not last quite as long as other shoes.

I am once again impressed with another great Altra shoe.  The One 2.5 is going with me to my next half marathon to hopefully bring home a new PR.  I love these shoes!!!  While I am used to the zero drop, it might take other people a few weeks to get used to them.  I also wanted to share with you that Altra just announced that they will be releasing a line of running apparel in 2016.  I hope you are excited as I am. 

Check out Altra on their Social Media pages:

Here are links to my previous reviews: 

Note:  I received this product in exchange for a review.  The review is my personal opinion of the product and I was not required to give a particular opinion of it.  I am not a doctor, so please use all of the products that I review at your own risk.


  1. After reading your reviews on both Skora Tempo and Altra One 2.5 which both seem like great shoe, I can't help but wonder if you could only have one which one it would be... I have to decide between one and the other (for road running mostly) and it seems they are closed... how is the cushioning on the Tempo VS the soft One 2.5 cushioning ? One 2.5 is lighter which is a good point but ultimately ride qualities are more important ! Thanks for your feedback.

    1. They are both awesome shoes. I ran my half marathon last weekend in the One 2.5's. They felt awesome and the only area of concern is that they will probably only last around 250-300 miles. If that is not a concern, I would go with the One 2.5's. The Tempo is amazing too and might last a little longer, but does not provide quite as much cushion. They are both in my top 5 shoes of 2015. I don't think you could go wrong with either one.

  2. Are they True to size. Or did you have to size up ?

  3. I have the Scora Tempo but the rounded heel is too loose for my feet. Does the One 2.5 feel more snug in the heel area? Also, which of the two is more breathable?

    1. The One 2.5 are more snug in the heel, especially if you use the lace lock method. The One 2.5 is an awesome shoe all around, but wears quicker than most shoes. I am also a huge fan of Topo Athletic. They offer zero drop shoes with the wide toe box. Topo Athletic shoes are all easy to lock in your heel as well. Check out my reviews and see what you think. Thank you for your support.

  4. What about breathability? I have also left a comment in the Tribute review, thanks.

    1. These are really breathable. It is a great mix of ventilation without letting debris in.

  5. How does the tougher material that runs from the eyelets down to the toes feel? Does it limit toe movement and breathability?

  6. The toe movement and breathability is not an issue with the One 2.5 at all. These are awesome shoes and you won't be disappointed.

  7. I have run with the Tempo but i had pain under my foot for 2 days (maybe because of too much arch support). I think i will try the One 2.5


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