1 Box 6Pcs Real 18K Gold Plated Necklace Clasps Spring O Ring Clasps 14mm Rectangle Shortener Spring Gate Trigger with Hoop Connector

This shoe is excellent. NOT a far cry from previous versions and certainly not to the point that some reviewers are claiming. It may have become slightly narrower in the forefoot, but only SLIGHTLY. You will likely need to size a half up. Otherwise an excellent, fast, light, well-fitted shoe for most foot types.

I'm a trail runner. I think the minor changes that were made over the Superior 4.0 were mostly for the better. The biggest change is the narrowing of the toe box. I think it was a needed change because the toe box of the 4.0 was too loose and caused some slapping when descending. The new narrow shape fixes that problem completely, as well as giving a degree of added confidence on uneven terrain (no more random ankle rolls). However, in my opinion Altra made it slightly too narrow. I say this because I got a blister on my big toe during my first run in the 4.5. I never got a blister with the 4.0 and I've run a couple hundred miles in them. Everyone has different feet and so opinions will vary but in my opinion the slightly too narrow toe box is a price worth paying for the added benefits of the 4.5. If you have very wide feet then I would recommend buying the 4.0. Other changes are the removal of the weird eyelet chain, replaying it with a normal setup. I liked both, but the new version is a little easier to lace up. The upper feels different too, but I can't say I noticed a big difference in ventilation, which was a minor complaint with the 4.0. I'd like to have more ventilation but it only becomes a problem on really hot days. Overall I really like this shoe and will be buying another pair (hopefully the 5.0) once they wear out.