Last you may have heard, I was in love with my Altra Instinct 4.0s. Unfortunately, I developed some heel pain, symptomatic of insertional achilles tendonitis, self-diagnosed with my degree in Internet medicine. I decided to experiment with non-zero drop shoes to see if there was any improvement in the pain I felt, mostly in the am and at night (not while running).
I decided to try the new Hoka One One Clayton 2s. I have tried on the original Claytons and didn't love the feel in the store. But the reviews of the update have been largely positive - an improved upper as well as a fix for a blistering problem many folks had with the original made it seem like an appealing choice.
I have joked it would be great if Hokas and Altras had a baby - meaning, a shoe with a comfortable (wide) toebox and the cushioning and drop of the Hoka. Cliftons have been almost great, but not wide enough. Challengers more so. And the lack of any heel to to drop was irritating my heel.
The Clayton 2 is very much in this vein. A super roomy toebox and comfortable upper, Altra style. And a 4 mm drop. Plus, a lot of Hoka style foam and cushion. They definitely did the trick for my heel - I experienced almost immediate relief and the pain completely went away in a week of running in the slight drop shoes.
These shoes were super comfy and light -- only 7.2 oz in a men's 9. I ran several races - including a 15 mi trail race through roots, water and mud, a 5K XC type race, and a fairly hilly half marathon without race-specific training with good results. The laces are rubberized and gave a really nice tie - cinching down the upper and preventing foot sliding. A super good fit. Except... a blister did develop on the inside of the ball of my right foot from the edge of the insole where the arch meets the upper material.
I thought it might have been a fluke - got my feet wet on the half marathon and thought that could have caused an unusual blister (I had already run 35 miles with no problems before it sprung up). But unfortunately, it happened again a few days later in the same spot on a 6 mile run.
I think the problem is with the insole - it should not have a rough ridge where it meets the upper material - it should be tapered and maybe even glued in place to avoid this irritating rough spot. I don't like cutting things up, but that might be my next step (or find a pair of replacement insoles).
Also, I experienced some pretty aggressive wear on the outside heel of my left foot - not completely surprising since its all RMAT foam and no rubber on the outsole (keeping the shoe so light), but its still not a good sign since it is almost all worn down in one spot after only 100 miles in. Another 50-75 miles and I'd be wearing into the white foam at this rate.
Hoka is so close with this shoe to something great for a light trainer/racer. But my experience through 100 miles is that they haven't solved the blister problem that has plagued this model. And Hoka still is not a long lasting workhorse for such an premium priced shoe - I had early breakdown with the Clifton 3s midsole material last summer.
I'm going in another direction - that combines the bigger toebox of the Altra and has some cushioning and a bit of heel/toe drop a la Hoka -- but that is pretty durable (some rubber on the heel) and better fitting: the Topo Ultrafly. I'll do a review on them once I hit 100 miles for a better idea of how they perform in the medium-term.