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Castelli Free AR 4.1 FZ Short Sleeve Cycling Jersey - SS18 is no longer available at Merlin Cycles. However you may find an alternative or updated product below.
Castelli Free AR 4.1 FZ Short Sleeve Cycling Jersey - SS18
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This item was discontinued 12th July 2019.

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Code: CS1800300
Castelli Free AR 4.1 FZ Short Sleeve Cycling Jersey - SS18
This jersey is an evolution of Castelli's top pro racing jersey from just a few year back. It’s also the first aero race jersey that didn’t get retired when the next generation of faster, more aero jerseys came along. 
 
For the 4.1 version has taken a different direction compared to the older 4.0 jersey. This updated jersey gets a zippered rear pocket, a flap behind the zipper to protect your neck, updated Velocity dimpled fabric on the front and an angled pocket for easier access. This makes it the one ideal jersey for all your rides, whether you’re sprinting for the win or trying to survive the Sunday group ride.
 
Features
  • Saves approximately 12 watts at 40 km/h compared to a normal race-fit jersey
  • Velocity dimpled fabric on front and shoulders for improved wicking and faster drying
  • Full-length YKK® Vislon® zipper with neck protector
  • Nervato fabric at armholes for improved aerodynamics
  • Silicone gripper elastic at waist
  • Mesh raw-edge arm grippers
  • Zippered rear pocket
  • Weight:123g
Daniel Superb Rosso Corsa jersey. You definitely need to size up with this one as pro cyclist cut. Amazing value &!service as always from Merlin!
Flyinfinni Awesome and lightweight, with a great aero fit. Perfect sizing.
lyall My second AR 4.1. Prevous is a couple of years old. For a hot Australian summer its fantastc. However the fabric is light & I have been slightly sun burnt after 6 hours in the ozzy summer. I'm 185/ 78kg /105cm chest XL is race. I still rate it very highly & that`s why its my second one
Lillee Great Jersey for skinny racers weighing 70kg, everyone else buy one size or two bigger than your normal size. Also the neck is very tight if you have any sort of neck muscles and not skinny as a pro cyclist. Otherwise I own 3 of these and the quality is very good.
Kuko Perfect material. XL size is for me (178 cm, 78 kg) a little narrow around my arms (circumference 39 cm) and in shoulders .
anthony The jersey is excellent quality but a bit on the snug side. I am approximately 6' tall and weigh 190lb. I went for the XL, one size up from my normal size. Great value for the price.
Osamu A mesh is used extensively and it is a perfect jersey for summer. Design is also good
Jack Top quality jersey from Castelli. This is race fit - that is slightly smaller than other jerseys I`ve had from them. So if in doubt or you if you prefer a looser fit go a size up from normal.
Mr Altshuler Great jersey. It is definitely snug but seems true to size. Great shipping and no trouble with receiving my order very timely.
Ali H Excellent jersey, great aero fit and good construction. I'm 5'7" 125 lbs, small fits perfectly.
Mr Abd Hamid Item received within 7 days for delivery to Malaysia and pricing is very competitive. Definitely recommended for future purchase. Item quality from Castelli itself is top notch. I would recommend going a size up since it is aero/race cut.
CRADD Great jersey, light and cool, excellent value. Fits true to size chart.
Mr Troy Super small sizing. I got 2XL as a 44" chest and it barely stretched on. Maybe ok for smaller gents, but not for anyone bigger built.
Dr ANDERSON Top quality lightweight jersey perfect for racing or being super aero while still being comfortable. As others have mentioned, the fit is deliberately tighter than a standard castelli fit so you may need to size up by 2 sizes if you are on the bubble between sizes. At 186cm & 89kg the XL is perfect.
Mr Cho Very good quality, color and design attracts all riders on the road. Be aware that the size of it is slightly tighter than others like Rapha or dhb if you are familiar with them. I am 180cm 82kg and always wear M size, and I should have ordered L for Castelli to have the same feeling as other brands.
Sir Howard Very happy with this product. Great fit from the jersey witch is made with premium materials.
Herve Brunet Nice race style jersey. Tight fit cut. Very thin fabric which makes it slightly transparent. The label inside should be made of softer material. I've cut it. I am 177 cm and 74kg and size L is just fine. As always Castelli runs small.
ian This is a very comfortable lightweight jersey, open pockets on the back are great for storing a waterproof and food gels etc, the zip pocket is ok for a medium size phone. Fit size is best if you go up a size.
John Castelli jerseys are always on the small side, common knowledge, this jersey is no exception. I'm 190cm/95kg and 3XL fits like it's been sprayed on, I wanted a firm fit and that's what I got
Sebastian Great and comfortable summer riding top. As always, tight Castelli fit. XL fits me with 1,79m/82kg.
Tim Great fit, great quality at an attractive price. Very pleased
pkultra I'm 1.7m 59kg (5'7" 130lbs) and they are a snug fit. They'll be a perfect after a few rides when they stretch a bit. Quality, light weight material perfect for hot summer days.
xainal Good fitting, light and breathable materials
Dan Perfect jersey for summer days, nice and light and very breathable. The arm length is not as long as the aero type jerseys, but they still have the raw edge which is nice. The length is just right and the gripper is pretty good too, there is also a useful zip pocket, which you don't often get anymore. As with all Castelli jerseys, it comes up pretty small, so size up accordingly.
Mr Persson Good fit. A little tighter in the collar section compared to previous releases of Free AR.
jeff This is a great summertime jersey for fast group rides. Wicks away moisture very well and I like the tight fit.
Mr McCombs The jersey seems to be well made and fits me well. I like the cut of the jersey (flexible, but form fitting). I have only used it twice so far so I can't report on durability. I would give it 5 stars except I find it crazy that even within the Castelli line, sizes are inconsistent. Even if you figure out your size for one Castelli jersey, a different Castelli Jersey could require a different size. It makes buying online stressful.