Guide ISO

These are probably the best Guides I've worn in terms of step-in feel and fit. I like the ISO adaptation as I have somewhat narrow feet and lower but not completely flat arches. I rotate these with Kinvaras which I love for speed work and tempo runs, and I've had no arch pain or issues such as others have mentioned. I don't, however, really like the stiffness of the new upper materials. After 10 miles or so, the rubber around the outer toe area begins to rub to the point of feeling abrasive. First time I've ever had a blister on my pinky toe. And after sweating for a bit, they really seem to move around and rub even more. Maybe they will loosen up and adjust with more mileage. If not, these will have to be used only for shorter recovery runs.

From Guide 9 to ISO, I love how my slightly wide feet fit perfectly. ISO works great and it has just right amount of stability 200+ lbs runner. I hit a lot new PR with this shoe. I being up my mileage for Marathon, some of the small problems starts to amp up. The forefoot cushion feels kind dead after mile 15. It could be a little bit softer and more bouncier. The support starts to dig into my arch just a little bit. The forefoot to heal transition can improve. Shin splints starts to happen during hill training. Overall the shoes can be lighter too. ( 200 miles in with 100 miles left in the shoes. I'm a heavy guy ) Color choose are way too BORING and safe. Think louder next time. DON"T be afraid of colors.

Perfect daily trainer for my needs. Cushion feels soft, but not mushy. Stability is definitely there but not noticeable. Could it stand to lose an ounce? What shoe couldn't, but the weight wasn't really noticeable. Great fit, comfortable upper, and happy to see they come in wide sizes. Will likely purchase a 2nd pair when the next model comes out unless I like the update more. Couldn't recommend more.

I’ve been a big fan of Guide series and have worn them for over 5 years. The 9 and 10 were the best and I had high hopes for the ISO. However, I’m left disappointed in the fit and feel of the shoe compared to the older version. The heel and arch have changed and the toe box is too tight. The upper tongue feel thick and the fabric is really stiff. I’ve found myself searching the internet for 10s and will shelve the ISO.

I have been running in the guide series for approximately 5 years now and something changed with this shoe. I keep swapping back to my old guide 10s which have well over 300 miles and they are just more comfortable. It feels like they changed everything from the width of the toebox to the support level and stiffness. I’ve never had this much trouble with the guide series. I’ll give them their due process and keep trying to run in them but it’s just not the shoes I fell In love with...