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Assos - MILLE GT Jacket Winter - Men's

Assos MILLE GT Jacket Winter - Men's

25% Off
$239.96 - $255.20 Original price:$319.00
Changing the size selection, or changing the selected color after selecting a size, may change the associated price

Item #AAS00AL




Tech Specs

46% nylon, 35% polyethylene, 19% elastane
Waterproof Rating:
Breathability Rating:
[NEOS Light] 27,000g/m², [NEOS Medium] 14,600g/m²
Center Back Length:
[medium] 27in
3 rear
Claimed Weight:
[medium] 14oz
Manufacturer Warranty:
road cycling

Why We Like The MILLE GT Jacket Winter

Getting out and after those early winter rides can take a little extra motivation with a cold nip in the air. After all, the past cycling season is now just a distant memory and the thought of heading out into a grey and cold winter landscape to log some base miles is the furthest thing from our minds. But, with the holiday season quickly approaching and with racing and quick club rides returning before we know it, braving the conditions burning some calories is necessary and when doing so, we reach for the MILLE GT Jacket Winter to provide insulating warmth to keep us comfortable on those rides.

The MILLE GT Jacket is updated with the inclusion of new materials designed to enhance your cycling comfort and this particular jacket marks the point of entry for Assos quality in a cold-weather kit. Like its predecessor, it possesses extremely thin materials that offer the wind protection of much thicker jackets. Key to the jacket's cold-weather capabilities is its new NEOS Medium and NEOS Light fabrics which are both 3-layer softshells with a bonded PU membrane that are strategically located to balance breathability and ventilation with warmth.

NEOS Medium is a windproof, water-resistant material used at the front panels. Its 4-way stretch design ensures that the jacket is close-fitting while maintaining enough give to keep you comfortable while reaching to the bars and allowing for a high level of breathability. To keep you from overheating when introducing a bit of tempo and hill workouts back into your riding, Assos constructs the sleeves and an upper back panel of a more flexible, and breathable NEOS Light material that also sacrifices some wind protection.

It results in a toasty core that stays well protected without sacrificing an optimized fit across the back, shoulders, and arms for tucking into the drops, reaching for a bottle, or changing up your climbing cadence by rising from the saddle. On the lower back and under the arms is its RX fabric, a brushed, 2-way stretch wrap knit that helps the accumulated body heat exhaust while also wicking away moisture. This additional breathability is especially important as excessive body heat and internal moisture can leave you in a clammy chill for the rest of the ride.

Its fit is classic Assos and only comes from a complete understanding of the integration of the human body while on a bicycle. The MilleJacket is cut in Assos' comfortFit, so it allows for heavier layering options without deviating from a dialed, sculpted fit. A 2W waistWave construction offers a clean look that locks the hem in place preventing any freezing drafts from interfering with your ride while its Raglan cut sleeves further enhance the range of motion while in the saddle and allow for a better fit with less material flapping in the wind.

It's built with sufficient protection in mind so you'll only need a minimal base layer in temperatures above freezing, however, Assos recommends its earlyWinter or winterSkinfoil options if a long, slow, distance ride is on the docket. Whatever layering choice the weather calls for, the jacket's three open pockets ensure that you'll have plenty of storage for whatever cold-weather accessories you think you may need to pack. Constructed with Assos' Triple Ramp design, it achieves the optimal height for easy entry and with internal seams, it provides a lid of sorts, keeping the contents secure over rough roads while fully loaded.

  • A classy cycling jacket for winter riding
  • Materials balance protection and breathability
  • Surprisingly lightweight considering the ample insulation
  • ComfortFit allows for heavy layering as necessary
  • Three rear pockets with Ramp construction securely stow items
  • Reflective details help keep you visible during long winter rides
  • Assos' exceptional fit, materials, and quality offer motivation for winter training

Great Jacket for Mid-30s to High 40s

  • Familiarity: I've put it through the wringer
  • Fit: True to size
  • Size Bought: L

I’m really impressed by this jacket—it’s actually better thought of as a jersey because the fit is really more like a jersey than a jacket. Just because it’s winter doesn’t mean you need to wear a parachute on your bike…If a jacket is too big that’s just a lot more air that you have to regulate and moisture wicking textiles won’t work if they aren’t next to your skin.

It’s actually close to waterproof as well—I’ve worn it in rain storms and it’s kept my body dry. With different base layers it can be used in a wide variety of temps.

I’m 6’0 tall, 40 inch/100cm chest and I chose the Large over the Medium because the medium was just slightly too tight around the chest even in a cycling position. The arms and length of the Medium were spot on though.

Child Sized

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: med

I bought a medium for my 5'6" 150# husband. He couldn't get his arms in the sleeves and it only came around to his rib cage. I tried it on as a 5'2" 120# female and it was stretched to it's max all around my frame.

Not a Winter Jacket

  • Familiarity: I've used it several times
  • Fit: Runs small
  • Size Bought: XLG

I always run cold. This jacket works for me at temperatures between the low 40’s to low 50’s. There is modest insulation on the chest and back. None in the arms. It is highly wind resistant but not wind proof. The materials are first rate and feel good to the touch.
It fits very tight especially through the arms. I own numerous Assos jackets and jerseys and always wear an XL. This is the only jacket where I need an XLG. I am six feet tall and weigh 162 lbs.
I would describe this as a good jacket with limited usability but, not a great Assos product.

Aero fit

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: Large

Fits like a glove, super warm!

Phenomenal Jacket - But Not So Wintry

  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Bought: XL

WARMTH - The Mille GT Winter Jacket stands up to the quality I expect from Assos - excellent materials, form-fitting, and a seamless part of the ride. However, I find the "Winter" name a bit of a misnomer (depending where you ride!) The description accurately mentions increased airflow, but this higher permeability means I'm too cold riding in anything below 40F, even with a Winter LS Skinfoil. I've found a 3/3 Winter Skinfoil keeps me comfortable between 40-45F and a 2/3 Spring/Fall Skinfoil does the trick for 45-50F with this jacket.

STYLE - I purchased the Nationalred and love that Assos wrapped the red around the back for visibility - something I wish they did on more jackets. I don't love the garment care info on the inner collar's an eyesore the second you vent even a little.

WISHES - Riding in cold winds usually leaves my lower face raw, and it would be awesome if Assos made an integrated face mask like the Ultraz Winter jacket (bonus points if they made it removable to swap between jackets!)

OVERALL - excellent jacket for a cooler temperature band in shoulder seasons, but not the most versatile.

Very Disappointing

  • Familiarity: I returned this product before using it
  • Fit: Runs small
  • Size Bought: TIR

Huge Assos fan. Was really looking forward to this jacket but unfortunately it is tiny.
I have several pair of Assos bib shorts, knickers and tights size xl. I also have several pair of their socks and gloves in the largest sizes and they just barely fit. Read that this jacket runs small so got the TIR and it is still too small. Too short and too tight in the arms, shoulders and chest. There is no way I could layer anything under it.
FWIW I am 6-2, 198, 48 chest, 36 waist.

Thanks for the sizing info, Matt. It's very helpful!

Similar. I bought a large based on the recommendation of Assos, and I could barely zip it. I'm 5'8" 184lbs, and I'm concerned xl will be too tight (or the sleeves way too long). My chest is around 42, waist 35"

Worth every Penny!

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small
  • Size Bought: Large

2018 was my first year of road cycling and through recommendations, Assos is the gear I use and I have fallen in love with their products. After collecting summer gear, and slowly adding fall and winter products. This winter jacket is absolute $!! The fit is just how I want it, slim and fitted and the fit and finish to this thing is 2nd to none!
This morning I wore the jacket with an Assos early winter base layer. Morning temps were 35 with sun and by the end of the ride it was 50. Was comfortable the whole time with no issue. We were riding at a slow to moderate pace. At 50F, if we were getting after it I might have started to heat up a bit too much. So I would say max is 55F and if it's 50-55F a spring fall base layer would be best.
Great job Assos and to the guys at CC. Looking forward to more Assos gear!!

Amazing Jacket

  • Familiarity: I've used it once or twice and have initial impressions
  • Fit: Runs small
  • Size Bought: Medium

I was looking for a replacement for my old Habu jacket. I'm a little biased in that I only wear Assos. This jacket was my 1st choice. The new NEOS material is a little stiffer than the material of my Habu, but it's still amazingly comfortable when on. I actually like the fit of this jacket better, and I love the fact that it has cuffs (unlike the Habu). I'm usually a small in EVERYTHING Assos but since CC only had this color available in the M, I went ahead and ordered it. Amazingly, the fit is spot on, nice and snug but not tight and restrictive. I'm 5-7, weigh about 134, very slim build. According to the size chart, I should be a small, but I found the M to fit great. I rode in it for the 1st time this morning. Temps were around 48-50 for the duration of the ride, with winds of 15-18 mph, so the real feel was more like low 40's. Ten minutes into the ride (with some hills of course), I was extremely comfortable (with the Fall skinfoil underneath) and never over-heated nor felt cold for the entire ride. The jacket kept me warm while allowing my body to breathe. This new material is amazing in the wind. All in all, really happy I purchased it. And love the understated design of the "BlueBadge" color with the blue zip.

What are your thoughts for this jacket at say 30 F.. I have older Assos stuff , and wear layers...... would this work over another Assos jersey??? I am 6-1 163lbs. ... getting older and colder each year it seems ..

Hey Jon!

This jacket would be great at 30 degrees with the proper baselayer. Personally, I would probably opt for the slightly-heavier Mille GT Ultraz jacket below 30 degrees, especially if you run cold like I do. Check out the links below for the Ultraz, and for one of Assos's excellent winter baselayers.

Feel free to reach out to me directly at if you'd like to speak in detail about winter riding gear.

Completely agree with Charles' comment about sizing. I'm 130 lbs, 5'7' and wear a size small in all of Assos' tops. Had to size up to Medium in this jacket.


Men's Apparel
Leg, Knee, Arm Warmers0III 

5ft 3in - 5ft 7in

(160 - 170cm)

5ft 7in - 5ft 9in

(168 - 175cm)

5ft 8in - 5ft 11in

(170 - 179cm)

5ft 11in - 6ft 2in

(180 - 187cm)

6ft 1in - 6ft 2in

(185 - 189cm)

6ft 3in+



< 132lb

(< 60kg)

< 154lb

(< 70kg)

< 165lb

(< 75kg)

< 176lb

(< 80kg)

< 187lb

(< 85kg)

< 198lb

(< 90lb)

> 198lb

(> 90lb)


27.5 - 29.1in

(70 - 74cm)

29.2 - 31.5in

(75 - 80cm)

31.6 - 33.8in

(81 - 86cm)

33.8 - 36.2in

(87 - 92cm)

36.3 - 38.9in

(93 - 99cm)

39 - 41.7in

(100 - 106cm)


















Note: Assos clothing has a very slimming, anatomic cut, if your build is less than slim or if you like your fit looser, go up in size.

How to Measure:
For best results, take measurements over your underwear.
Measure around the widest part of your chest.
Bend to the side and measure around the place where your waist bends, keeping the tape a bit loose.