This is a very form-fitting jersey and the material feels weird, but it works well. I have used this in the heat and on cool rides, There are no sewn seams. My first one is still going well and I couldn't resist picking up a second. I am not sure if Shimano will be making these anymore.

I'll cut to the chase here; this jersey really surpassed my initial expectations. I believe this is shimano's first foray into the road apparel, as they had made some MTB apparel previously. I had tapered my expectations of fit & performance accordingly.

I was looking for an all-black jersey with minimal branding and a solid fit, which is usually fairly difficult for someone who is 6'3" and weighs around 177 - 180 lbs. Turns out - I ended up really loving this jersey for those reasons stated, and more.

Fit is really great - tad larger than a traditional Euro fit, (I find myself wearing a M in Euro-cut). Went for a Large and it's a great fit in the body/stomach - tight in the arms, and arm length was spot on - not capped sleeves, coming to slightly above tru mid bicep. no rubbing or hot spots, no bulky zippers, neck/collar fit great.

Material used is a huge plus - it's not see-through thin, but still feels lighter than traditional lyrca for, say, training jerseys. The jersey also feels very waterproof, while retaining stretch - almost feeling like a more robust fabric overall.

I have been using this jersey for almost any temps, wore it in the fall, used it last year in the heat of summer - and now I've been riding in it during spring. Legit all-around jersey, couldn't be happier with the purchase.

This is a very different jersey. It stretches on and no wrinkles. I have used it up to 85° F. One issue I have with it is that the lower front of the jersey has taken on some black from my bibs, but hardly noticeable. I wear a medium or small in Castelli, depending on jersey model.

I got this a few weeks ago and have had a chance to wear it and the shorts a couple of times. I'm 5'8" 150, 31 waist with slightly muscular arms. The jersey is a good race cut, and since the material is a little less stretchy than normal it doesn't give like typical fabric. The arms are definitely a little tight around the bicep. Standing in front of the mirror, it felt a little small but like every other piece of good cycling kit I had to wear it on the bike. Happy to say the fit was better, and I'm keeping it. I was able to wear both a thin baselayer under it as well as a pair of armwarmers.

This jersey feels thick and awkward. If you enjoy lightweight jerseys that you can almost forget you're wearing, this is the opposite. I am having a hard time thinking of how to describe the material for you. It is not soft to the touch. Tarp is not a good comparison, but it's what comes to mind. I tried sitting around in it for 10 mins to let it grow on me, but it didn't and I and had to send it back.

Incidentally, the S-PHYRE bib shorts are NOT made of a material like this jersey, and I love the shorts. Really wanted the matching jersey to become my go-to kit, but I really couldn't stand wearing this jersey.

I wanted to like this jersey, but the fabric felt “heavy” and not as stretchy as I would have wanted.
Also- fit was off.
I usually take a small, this one was too small- but in a way where I know a medium would be too big.