I have worn only Asics shoes for my running for about the past 10 years, and have always purchased an 8 medium and gotten a good fit. A day before ordering this pair, I tried on 2 separate styles of Asics in a retail store. I didn't care for either style, but tried them on to confirm 8 medium sizing before placing this order on Amazon.

Despite all of this past and current experience having 8M Asics fit well, these GEL-Enduro 7 shoes are too narrow.

I would not recommend these unless a wider stated width than you normally wear is available and you are willing to gamble on it.