Buyer Beware – Midsole Construction

Here is another example of Buyer Beware. CF came in today with a new pair of Asics Gel Evolution 4. She had worn them for an initial 2 mile run and started to experience left forefoot pain. This was discouraging especially since her last shoes caused arch pain, which I’ve also blogged about https://drshoe.wordpress.com/2008/10/29/shoe-review-mizuno-wave-rider-11/

Upon close inspection, I discovered that the grey EVA midsole were of different lengths in the right versus the left shoe.

eva_assym_6

In this case the amount of EVA in the left shoe extends less forward than the EVA in the right shoe. This results in vastly different flex points in the forefoot as the grey EVA is much firmer than the white EVA as this image shows.

eva_assym_7

As most of you know if you’ve read my blog, I am a huge fan of many Asics shoes, so I’m not being dispariging to their brand. This is simply a manufacturing error and one more instance where buyer needs to beware.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s