Catamount 4

Yes for most runners. The one reviewer who wondered about going up half a size was the exception. The bigger variable is the heel: if heel slip is a problem for you in other shoes, try the Catamount 4 on and use a runner's loop lacing before you head out on steep ground.

Up to about 50K, yes. That's where both positive and negative reviews drew the line. Beyond that, the firm midsole becomes the issue, and even reviewers who liked the shoe wanted plusher foam for longer days.

It can work, but it isn't the obvious pick. The stable platform is a plus, but the firm, stiff ride and the snug toe box ask more of your feet than a softer, more flexible trail trainer would. It's better as a second, faster shoe.

On our spec sheet, the drop went from 6mm to 8.4mm and the heel gained a little foam, while the weight barely moved. Reviewers add that the plate is stiffer. The result is more stable and less agile, which some runners count as an upgrade and others as a loss.

The S/Lab Genesis 2 is lighter on paper, at 249g against 270g, and has a slightly lower drop. It also carries a higher RRP. If you land on your heel, the Catamount 4's higher drop leans your way.

Signs are good. Lab testing scored it well for durability, one review singled out the outsole rubber, and another reported no wear worries across its test period. We haven't seen long-term mileage reports yet, so treat that as encouraging rather than proven.