The normal great fit by NB. Depending on the sock thickness you may feel a little space in the heel. 4th Gen Zip is addictive. The spring in your step makes running fun. After nine years of Abzorb running the Zip is great 4G shoe. Buy 1/2 size larger. Currently paired with
Champion rolltop-cotton and Thorlos rolltop-THOR*LON.
Pros:*Abzorb SBS in the forefoot provides 5-10% more effective cushioning than original Abzorb with no compression set
* NB Zip controlled cushioning in heel provides durable responsiveness
* C-CAP midsole provides cushioning and support
* Removable full-length insert of ABZORB cushioning provides added comfort
Cons:finding the right sock to get shoe to fit properly. No "Tokyo at night" reflectiveness like some other NBs. See 1350.
Shoe Weight:  394 grams (13.9 oz)