This is a great shoe. It's fast. It's comfortable. It keeps you on your forefoot. It's super light. Two complaints: They are impossible to put on. I know that sounds crazy, but the heel collapses very easily. Must have the heel loop to pull on. Secondly, they untie 100% of the time if I don't double tie. However, if you can get them on and remember to double tie, they are a great shoe!

Bought them for a birthday gift. He loves them! They run small so order 1/2 size up from the normal. Otherwise, wonderful running shoe. I have the same in women's and love them as well.

Great shoe. I'm using it as my daily trainer. Lots of spring in it. About 30 miles in so far and it still feels great. The carbon plate definitely gives a bit of push, but not like some of its competitors, which is why it's not a racing shoe for me, although one could race in these. I would definitely recommend these and will buy them again.

Fast, comfortable, and durable shoe for training and race day. The carbon fiber plate is not just hype. An excellent road shoe.

Shoes feel light and comfortable. I recommend them.

I am a Clydesdale triathlete and increasing my runs. I have the Carbon X and a pair of Clifton 5. I have stopped training in the Clifton 5 and are running only in the Carbon X. My only complaint is that I run sockless and am a very heavy sweater. My feet are soaked after 1 hr running in Florida heat and humidity. The glue for the insole liner separated in the toebox after the second run and 1st triathlon race. This did not affect the comfort or performance in anyway. I throw a dryer sheet inside after each run and they stay smelling fresh. I have about 320 miles on them and they are ready to be replaced. I am ordering my next pair now.

Been using them for about three weeks now and after breaking them in a little bit I love them!

Love these trainers! Yea they're running shoes but Brits call them trainers and it sounds cool so why can't I? They're very comfortable and made running much more fun. Love these things.

Great light training shoe. Quick delivery with no issues.

I absolutely love this shoe. I have completed 4 half marathons and 3 5k's and this shoe is fast. I am a mid foot striker and found the shoe to be extremely comfortable. I am a 2E width and wish the toe box was bigger. These shoes are great if you do Ironman or triathlon since the Carbon helps propel you on tired legs. I set a half Ironman PR in these the first time I wore them. The shoe still looks brand new and feels comfy after 100 miles. Great distance racing shoe!!!