While the bag is not a carbon plate the pillow added a very attractive pop in the toe off of the shoe. The bag is now 10mm thick, up from 4mm in the 36, and tuned with 15psi of air for the women and 20 psi for the men providing the women with the softer ride they prefer. The importance of this plays into the tuning of the Zoom unit which is gender specific in the Pegasus 37.Īs I touched on earlier the Zoom unit is no longer full length but is now top loaded and only in the front of the shoe. What they found was women preferred a softer landing to men. When Nike started the update on the Pegasus they began to look at the preferences between men and women. That said Zoom Air is still a major component of this midsole, but it too has a major shift in design. Undoubtedly the most famous part of the Pegasus has been the Air Zoom unit. What I really liked was that the responsiveness is just as consistent weather I was running fast or slow. I would not describe the ride as bouncy but snappy and certainly more lively than before especially as faster speeds. While both of these are a firmer foam React is a lighter and far more responsive and forgiving especially over longer runs and the perfect balance between soft and firm. What is new is the more responsive ride that feels futuristic when compared to Cushlon.

While React foam has been been around for several years it is new to the Pegasus.

No doubt about it the shining star of the Peg 37 is Midsole. It seems to me that this redesign is the wake up call the Pegasus needed. The front loaded Zoom units were really noticeable particularly when running down hill. The slightly harsh ride I have experienced with previous versions was gone and replaced with a healthy pop that left my legs fresh after longer outings. The responsive ride was impressively noticeable on my initial outings. The switch to React is a game changer for the Pegasus. This is an area of contention for me and often times can be a real deal breaker with a shoe, but with the 37 the more miles I put on the more this improved.

This was most noticeable in the forefoot when I placed the shoe on for the first time. True to form, the Pegasus 37 has a narrow fit.

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