Best Shoes for Insertional Achilles Tendonitis?

I use to run in Pegasus. The heel cup was stiff and gave me insertional Achilles tendonitis. I switched to the Clifton’s and placed a 2/3 heel lift in to take strain off my calf/Achilles.
fixed it almost immediately! Wish I had done it when the pain started (I was out for six months)

I also have IAT though it's mostly manageable. You probably know this already, but you don't want a shoe that puts pressure on the area, which usually means a soft heel (no plastic heel counter inside of it). The Nike Invincible night have a small one (I'd have to look), but is ok for me. I also have the Nike Tempo Next% and those have that flyknit type of upper that squeezes my heel and totally doesn't work. You're probably just going to have to experiment.

Other things you should do if you aren't already:

1. Put heel pads in on both shoes to reduce stress on the Achilles

2. Eccentric heel drops should only be done on the floor, not off a step. Too much dorsiflexion is bad for IAT, unlike mid-point Achilles issues.

3. Isometric holds where you raise up about halfway on your toes (one foot ideally but both feet if the single foot is too painful) are really good in the early stages. Build up to 2 minutes per time.

There is no one shoe. All depends on the individual person for what shoe would be best

I have had good results using the Mizuno Wave Inspire with insertional achilles tendinitis + Haglund's deformity on top of it. Heel backing is not that hard and it sits lower than some shoes as well. You're definitely tackling one of the crappier forms of irritation in my opinion. Best of luck to you.

I'm a big fan of the Wave Inspire and agree that the backing is lower than usual. I had the same issues as the previous poster. Adidas Solar Glide and Solar Boost have a soft foamy heel backing, there is nothing hard at all on the heel. I found those to be pretty useful because of the soft backing, but by the time I was fully wearing them I'd already had surgery so I can't really give real cause and effect.

Had insertional achilles tendonitis twice. It really sucks, I’m sorry. To give you a little hope, yes, the shoes can definitely cause IAT. You can always cut the backs off your shoes, but I think you should go get fitted for the right running shoes. Every foot is different and needs different support. Especially when you get to a certain level of training. It makes a huge difference and will definitely be worth it.
I switched my shoes and noticed a huge improvement almost immediately. Had been cutting the backs out of my shoes for a year but then realized that I had been wearing the incorrect shoes all along. Not saying this is the solution or the only thing you should be doing to fix it (keep up with the heel drops, isometric stuff, rolling, ice, etc.), but I really believe that the shoes were what I was missing in my recovery. Good luck!