When Americans think of hill climbing prizes, KOM (King of the Mountains) comes to mind. In Italy, the prize is GPM, Gran Premio della Montagna. Castelli's GPM Full Zip Jersey is a fine maglia to wear when scooting up steep hills to steal mountain points from your friends. You love them, but sometimes you have to beat them. It's for their own good.
The GPM is probably the least flashy jersey in the Castelli lineup, but it still stands out with the classic close Castelli fit, grey caps on the sleeves and collar, and of course, their scorpion logo.
The GPM Jersey is similar to the Prologo jersey in terms of fit and material. The differences are that the GPM uses 100% Stratus fabric with Prosecco treatment. There are no contrasting color panels, the collar and sleeves are topped with seamless micro fiber fabric for comfort and grip, and there's a silicone gripper at the waist hem. Castelli also thought to include a full-length zipper (FZ) with a cam-lock on the pull. Open up the zipper and you can pull open the jersey without tugging on the zipper. Lock down the cam, and the pull will stay in place.
Castelli's Stratus fabric with Prosecco treatment looks simple. But the engineering behind it is impressive. Stratus is a dual-layer 100% polyester knit weave. The inner layer is a multifilament web that moves moisture from your skin or base layer to the outside of the fabric. The outer layer is a micro fiber weave that allows sweat to evaporate in the wind. Prosecco is a treatment that helps water disperse and evaporate faster, rather than staying in the jersey.
There are three standard rear pockets with the Castelli scorpion on the middle pocket and a fourth, mini-zip pocket built into the right rear. The Castelli logo is also on the shoulder.
The Castelli GPM Full Zip Short Sleeve Jersey comes in Black, Cyan, Red, and White. Sizes run from Small to XX-Large.
This was my first Castelli purchase and everyone says to size up in Castelli clothing. To test this I bought a medium and a large in this jersey just to make sure. Well I should have saved myself the trouble and sized up like the masses say because they are correct. Instead of my usual medium in cycling clothing, I am a large in Castelli. Fortunately returns are easy with Backcountry. I?m 5?9?, 145 lbs. with skinny arms and a 36?-37? chest and the large fits good. It?s a fairly snug fit with a little bit of play in the stomach area. It?s a pro-cut jersey so it?s supposed to be tight. It?s not a skinsuit tight though. I probably could have crammed into a medium but it would been a little uncomfortable. Quality is top-notch and the fabric is super comfortable and very lightweight. It?s a hot weather jersey. I wear it during the hottest part of the summer here in SW Florida and it?s my coolest jersey. The extra zipper pocket is a nice bonus even though I?ll probably never use it and the sleeves grip nicely and are just the right length. My only complaint is that the Castelli logo/badge is annoying if you?re wearing shorts instead of bibshorts. The straps of my bibs line up to where the badge is so you don?t feel the logo. But if you?re wearing shorts you can feel the badge through the shirt and it?s itchy and uncomfortable. Because I love everything else about the jersey and because I got a good deal on it I kept it. You can remedy the logo/badge situation by putting a nickel-sized piece of athletic tape on the inside of the shirt when you wear it. Overall I?m very happy with this jersey and would buy another.
I really enjoy this jersey. I have it in the red and the white versions and I'm considering getting either the black or the cyan as well. It's super light and breathable which makes it suitable for the hottest of days. The fit is top notch and is similar to most other Castelli jerseys. However, the more subtle design of this jersey fits my style much better than most other Castelli product. The style combined with the fit is the reason I enjoy this jersey so much. For those who've read other reviews about having to return for larger sizes...stick to the size chart. Take the few minutes required to actually take measurements and you'll be much less likely to have to return for a different size. I'm 6' 1" tall and 170 lbs with approximately a 39" chest and got the large. Ordering based on the size chart and measurements got me the right size.
I ended up purchasing an XXL thinking this would be a race-fit or probably be real tight, but it's loose enough to keep me comfortable all day on the saddle in the heat without having to mess with my collar too much or re-position it.
I'm in between an XL and XXL I guess, 5'11.5" and 220lbs (44" chest) and the pockets felt a bit loose, so I was worried if I lost weight it wouldn't fit, but I figure I'll just get it tailored to the exact fit when that happens.
Anyhow, the performance of the jersey is awesome! It's clean, looks good, and kept me dry on a sunny day, but the morning was a bit chilly and I wasn't freezing.
The interior lining feels great, the pockets are roomy, and it's just an all around comfortable fit. Very pleased with this!
I really, really, really like this jersey! Like others have said, this jersey feels perfect when in the cycling position because of how it's cut. The sleeve length is just right and it doesn't ride up my arms like other jersey brands do. The stratus material loves to breathe. The more you sweat, the jersey starts feeling like second skin. I just wish it was a tad bit shorter in length. I'm 5'8" at 149 and I got a size L. The chest measurement from the sizing chart is just right, so size up!
I think this is a great jersey given how much it costs. The sizing is tough as usual for castelli things, but you know that going on. I'm 6'2, 175lbs and I wear a large. I think it is a little too big. Maybe if I drop a couple pounds I can squeeze into a medium and it will be a perfect racey fit. :)
Materials and everything feel great and very high quality. I use a couple of these as my daily training jerseys and they are great.
This jersey is definitely constructed with the "fit"rider in mind, and I am not entirely cut from that cloth. I am 5'8", 180 lbs, and semi-fit, but that didn't stop me from ordering it. I originally ordered a size up from my usual Large and the XL was just a little to snug. I exchanged for a XXL and that fit fine. A Sleek Italian design procured from quality materials makes this one of my favorite jerseys!
The red logo looks cool but it's a hard shiny button. Assume the position first before evaluating the fit. The shoulder/armpit area feels weird/tight standing in front of the mirror but forms into place nicely leaning over on the bike. Go a size up with this eurodog stuff. Snug, which means it's not my most comfortable.
Comfortable jersey. I usually dress size "L", but this jersey is too small in shoulder/armpit area.
So I got size "LX"
I am 185cm = 6'1", 75.5kg = 166 lbs and chest 103cm = 40.25"
I most cases you will have to go one size up.
Looks like this design is for real climbers body shape :-)
Schleck, Contador etc...
This is a great jersey - does everything you expect with wicking and comfort and color. I am a 44" chest and 5'10" and the XXL is the right size (almost a race fit). No riding up - easy to reach pockets - full zip. No complaints at all - love Castelli kit.
everything is very nice, except the black has faded badly on the back compared to the front.
fit is good, nice and lightweight good for the summers in socal, key pocket is a nice touch. like others have mentioned the little hard logo is weird.
Unfortunately, my back pocket ripped within 3 uses. I have a baggie for my phone and cards that I slide into my back pocked. Some how along a ride a buddy noticed something poking out the back of my jersey. It was the corner of the baggie holding my phone. The jersey fit great and the design is simple and clean (got white for hot summer rides), but the material is a looser weave and some how one of the threads ended up tearing and the hole spread quickly. For the price it is hard to beat, but I expected something more resilient.
I like this jersey but I should've sized up one more size. I'm 5'10" 160lbs and the large is tight and a little too short. Good basic design and comfort for everyday use - the back pockets are well designed.
I'm about 5'11'' 178lbs, avid runner and biker, pretty much in shape and the XL was on the border of being OK/too-tight but I returned it......