Ordered using the Castelli (and most all others) recommendation, size up. This is a nice jersey, but not the form fit race style jersey. Its a slightly loose fit (medium, 5'9 170 lbs.) and thats ok. I just use it on weekday short rides. For me, not for the epic weekend jaunts. Quality and subdued quality is there, love that from Castelli.
This is a great jersey for hot weather rides. It fits well and the fabric is perfect for ventilation. But . . . the jersey doesnt meet up well at the top of the zipper. One side is about 38 lower than the other at the collar. Not good. But not troubling enough to me that I paid to return the jersey.
I live in a dry heat area, Amman-Jordan, breathable, soft garment, the zipper, I am 5 8, 135 lb, small fit nice, I bought three initially from Bikestiresdiret relying on reviews, they go together with Castelli Endurance X2 bibs in case you care about looking good on the saddle, with several uses and washes they are holding up, I looking for many uses with my half a dozen Entrata Jerseys
Love this Jersey. Light, cool, comfortable, good looking, good price for the quality, .... and color bright yellow is nice, people will see you. I am medium in Giordana and LG. Most castelli and like this one I take large
The sleeve is silky and snug without being tight. Really like this Jersey.
I love the fabric in hot weather. It's cooler than some of my other jerseys. The zipper is nice and should last, unlike another one of my jerseys. The XL size I ordered fits like an L. It's just short. It's okay when wearing bib shorts, but can show bare waist with some of my regular shorts. I am 6 ft. tall, regular proportioned and 190 lbs. if that helps. The jersey is skin tight, which doesn't bother me. I just wish the jersey was longer.
Seems to be a really nice lightweight jersey and with all my Castelli gear its well made. I find Castelli fits me the best and although not really cheap this is much nicer than other brands in same price range particularly in fit. This is a summer jersey for warm to hot weather. Looking forward to a lot of use.