Agility Synthesis Flex

Considering that I bought this shoe online, I was so pleasantly surprised by how well it fit. It did not need to be broken in at all, I ran a 5k one week after purchasing the shoe and the shoe performed like a dream, no blisters, no discomfort anywhere, felt like I was running on a cloud! Great arch support, nice breathable fabric, great color (I got the black/blue one). Overall great shoe for a decent price. I am a 37 year old woman who is 4'11'' and I wear a size 5, it is so hard to find good looking shoes that perform well. Merrell has become my new favorite brand. I also use your shoes for work, I am a nurse, working 12-14 hr shifts, constantly on my feet and I never feel the need to take my shoes off at work now, they are so amazing! Thank you for great shoes and the convenience of shopping online!

Had to go up a size because they ran small and now it’s too narrow along the arch of the shoe. I ran 9 miles the other day and got horrible blisters on my arches. I’m training for a half and will now have to buy another pair of shoes. These are the third pair of Merrell’s that I’ve had and I keep running into the same problem. I got this model because I had to exchange a previous model but wished I had just gotten my money back instead. I really want to like these shoes, everything else about them have been great.

This newest version of the Agility shoe is in my opinion, the lightest and most flexible of the series. They do feel a bit larger on my feet than the previous version which hugged the arch and had incredible support in the mid-foot. The Agility Flex Synthesis is looser around the arch and a bit narrower in the toe-box, but still gives plenty of room for your feet and toes to expand while out on long, technical runs and hikes. I've taken these on long, undulating runs in the mountains, on well-groomed less technical trails, and on road runs too! It is a great starter shoe for trail running virgins as well as a sturdy, dependable (and fashionable!) shoe for trail running veterans as well!

My favourite thing about these shoes is how comfortable they are! I'm an ambassador for Merrell and have tried many of their products. The Synthesis are my go-to training shoe. I also love that they don't let debris or even sand in because the material on the uppers is so good. They have great support so they're wonderful to run lots of miles in. I've put probably 300 miles on the pair I have, and they've held up great. The only things I dislike about this shoe is that the rubber on the soles is a bit slippery on wet rocks, and the toe box is quite wide. A wide toe box is something you'll like if you have a wide foot, and it's comfortable to train in, but I prefer something that hugs my foot more tightly for fast training days or race days.

I'm surprised to see 2 reviews saying they run small. I typically wear and 8.5 but needed an 8 in this shoe/brand. The shoes are very light weight with great tread on the bottom for hiking/trail running.