Arc'teryx Theta AR Jacket - Men's


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Designed for multisport versatility, the Arc'teryx Theta AR Jacket for men is the one jacket you can wear during 4 seasons of alpine adventures, from a rainy trek in the Canadian Rockies to a winter ski tour in the Italian Alps.

Constructed with 3-layer Gore-Tex Pro Shell fabric and Tiny Gore taped seams, this Arc'teryx shell sheds snow, rain and sleet while still permitting excellent breathability. Lighter than the Theta SV, the majority of this shell is 380NR fabric to save weight, with 480N in the high-wear areas. Waterproof zippers seal out drips and zippered pit vents dump excess heat on tough ascents. Built for backpacking, climbing and skiing, the Theta AR has a helmet compatible hood, higher chest pockets and a nice long tail that will tuck into a harness or keep you covered during pow runs in the backcountry. Allowing full mobility with its anatomical, gender specific shaping and articulated patterning, this Arc'teryx shell has a generous relaxed fit for a few layers underneath but still has that unmistakable athletic silhouette.

When you pull on this winter rain jacket, it feels lightweight, unrestricting and like no weather will ever reach you under its protective shield. Well worth the investment, the Arc'teryx Men's Theta AR Jacket will keep you feeling invincible for years – probably for the rest of your outdoor life -- while its clean styling always looks great on a rainy walk home in town.


  • Fabrics: 380NR GORE-TEX® Pro Shell 3L; 480N GORE-TEX® Pro Shell 3L
  • Waterproof, snow-shedding, windproof, breathable, lightweight, durable
  • DWR finish (Durable Water Repellent) helps bead water from fabric surface
  • GORE-TEX® three-layer construction
  • Micro-seam allowance (1.6 mm) reduces bulk and weight
  • Tiny GORE® seam tape (13 mm)
  • Laminated high-strength hanger loop
  • Fully seam-sealed for waterproofness
  • One-hand adjustable drawcords
  • Articulated elbows
  • No-lift gusseted underarms
  • Hood: laminated brim, glove-friendly hood adjusters, helmet compatible Drop Hood™
  • Laminated chin guard
  • Zippers: WaterTight™ external zippers, molded zipper garages, corded zipper-pulls reduce noise and are easy to grab
  • Note: WaterTight™ zippers are highly water resistant, but not waterproof, do not keeping items in your pockets that may be damaged by moisture
  • Pit zippers for easy venting
  • WaterTight™ Vislon front zip
  • Laminated die-cut Velcro® cuff adjusters with elastic
  • Drop back hem
  • Laminated hem
  • Adjustable hem drawcord
  • Full seat coverage
  • Internal chest pocket with laminated zip
  • Sleeve pocket with WaterTight™ zip
  • Two high-volume hand pockets
  • Reinforced shoulders, arms and hips
  • Embroidered logo
  • Non-chafing label
  • Adjustable elastic waist drawcord
  • Care: Machine wash in warm water, double rinse, do not use fabric softener, remove immediately, do not leave wet, tumble dry on medium heat, do not iron
  • Uses: All around, trekking, ski touring
  • Generous cut for easy layering
  • Anatomical, gender specific shaping for fit and comfort
  • Articulated patterning for unrestricted mobility
  • Fit: Athletic fit, thigh length
  • Weight: 486 g, 1 lb 1 oz

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Review Summary

4.8 out of 5

12 Reviews

  • Build quality: 6
  • Great design: 5
  • Ease of use: 4
  • Performance: 4

  • Cost: 3
  • feels less hardy with thinner materials: 1
  • noisy: 1
Comfort: 4.7 / 5
Quality: 4.7 / 5
Durability: 4.5 / 5
Water Protection: 4.7 / 5
Fit: 3.5 / 5
Warmth: 2.3 / 5

12 Ratings & Reviews


from NY,NY
25-34 yrs

Everything Proof
December 29, 2012

This is the best jacket I have ever owned. True athletic size with just enough room for a mid-layer. I am 6'2, 170 lbs. and a medium is just perfect. Arc'teryx has yet let me down. Their products are simply the best!!

Comfort: 5 / 5
Durability: 5 / 5
Quality: 4 / 5
FitClothes: 4 / 5
WaterProtection: 4 / 5

less than perfect, fits a little large though
January 28, 2011

I bought this Theta AR to replace my Alpha LT jacket. I got the Theta AR in an M and it fits a little large, well, with plenty of room for layers underneath . The Theta has a nice long cut and a high collar for those raging storm days. The craftsmanship appears to be top notch and the deep dusk is a sharp color, especially with the orange accents on the zippers. Couldnt be happier with this purchase.

Pros: Build quality, Ease of use, Great value
from Hartford, CT
25-34 yrs

January 09, 2013

Love this shell. The pro shell fabric is a little noisy but given how well this thing keeps me away from the elements with a fabric as thin as my work shirt, I will forgive it. I also love the sizing from AT. They keep everything very slim fit and articulate the jointed areas keeping the fit consistent no matter which direction you are throwing your arms/legs. I typically take an XL but went with a L from them because I layer with thin items. When I use it skiing I can fit my helmet under the hood (as a scale of the size of the hood.

Pros: waterproof, windproof, comfortable, helmet friendly, Cons: noisy
Comfort: 5 / 5
Durability: 4 / 5
Quality: 5 / 5
WaterProtection: 4 / 5
from Ky and the world
35-44 yrs

February 08, 2011

We just rec'd this jacket and was amazed by yhe Great little details that makes the Theta AR superior to almost all "ALL Around usage jackets. #1 the fit and finish is topnotch. #2; it's xtra long i.e. it covers your butt... probably in more ways than one I'm surmising. I'm really looking forward to giving the Theta AR a real world in the following weeks.......

Pros: Great design, Build quality, Ease of use, Great value, great hood

from Maryland
35-44 yrs

Bomber proof protection
October 15, 2012

This is an amazing piece of gear! From the gore pro to the articulated cut, it seems like everything (zippers, hood, stitching, denier, etc.) about this jacket was designed to fulfill a purpose. That purpose is for you to decide. Sure it was intended for alpine climbing, but the aesthetic of this jacket makes for stylish cover for a trip to your local pub on a rainy night. I'm 6'3, 175lbs, & the medium is a perfect fit--plenty of room to layer, but not so much that I'm swimming in jacket if I choose to wear it on its own (unlike the SV, which fit HUGE in a medium). The price is no doubt spendy, but this jacket will stand up to all kinds of abuse. The only maintenance would be to freshen up the DWR finish every couple of years. Other than that, you've got a shell for life. Oh, and chicks dig it--seems like I get compliments every time I wear it.


Evolution of Theta AR
August 20, 2011

this current version of the theta ar has been evolutionary, the overall feel of the jacket has gone lighter, thinner but yet it performs all the functions its predecessors did so well. the first impression is the material is much thinner. if one folds it and put it at the bottom of a huge pile of clothes, there might be the possibility of a fold line being created. i had one and this could be one of the negative of the thin material. when its put to test in a cold environment, it still blocks the wind very effectively and also the rain. the main zippers also has a bit less "tough" feel to it. the version i got is made in canada, and it has perform to expectations. lets see in time it would be as hardy as the older generations of arcteryx jackets. overall a good buy and performs as expected.

Pros: works well as advertised, Cons: feels less hardy with thinner materials
from LA
25-34 yrs

Excellent Jacket
November 18, 2011

I took this jacket for a test run for my 10 day trip to Bhutan, with about 4 days hiking in about 4100 meters (about 13,450 feet). The avg temperature ranged around 5-10*C and about 0*C average in the high mountains. Rain, mud, ice, slush, dirt, hail, snow and everything you can think of happened and the jacket took it like no other. This jacket handled it all well and performed the way it was intended to throughout the trip. There was a couple of times I had to slide down the muddy wet trail going down the mountain because the was no other way to go down. I was afraid I may have rip the jacket during the slide but the jacket only got dirty and held up well. Whats great about it for me was it's lightness and easy to fold up in the pack when I don't need it. I won't go too much about the goretex functions because it did exactly what is was suppose to do in those terms. Planning to climb Nepal and Kilimanjaro next year and I will def. have this jacket with me. I'm 5'9 and I ordered a "L" size jacket. At this time, I have no negative comments - however I will certainly update if I encounter any on future trips.

Pros: light, durable, worth it - does what it suppose to do
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
FitClothes: 4 / 5
WaterProtection: 5 / 5
from Corvallis, OR
25-34 yrs

Needs a large elastic pocket inside
December 19, 2010

Love this jacket. Fits great, looks great whether zipped or unzipped. Best looking jacket I've owned frankly. The fit is athletic and e build quality fantastic. My only gripe is I wish it had a big drop in pocket on the inside right and maybe a second stash zip pocket on the right bicep. Hard to find anything wrong with this jacket though really. Can't imagine I'll have to replace it for 10 plus years.

Pros: Great design, Build quality, Lasts forever, Performance
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
FitClothes: 3 / 5
Warmth: 3 / 5
WaterProtection: 5 / 5

Best Gore-tex Jackets
December 01, 2010

Bomb-proof, watertight, and reasonably quiet for such a durable fabric. I bought my first Arcteryx Theta in 2000, it outlasted my car. Hope they're still making these in 2020. Nobody thinks it through better, nobody builds it better!

Pros: Great design, Build quality, Lasts forever, Performance, Ease of use, Cons: Cost
from Los Angeles, CA
35-44 yrs

Great Shell
December 09, 2011

I'm always looking for a nice jacket that would keep me warm and protected while looking comfortable and stylish. City or the steppes of Mongolia, this jacket can keep you warm and dry, and you will not look out of place. Rain, humidity, and wind are no match to this wonderfully thought out and well executed shell. Extra length of the Theta AR comes in handy and the built in stormproof hood is fantastic. This is my first Gore-Tex Pro Shell jacket and I'm pretty confident that this won't be my last. One word about sizing. I was between a large and medium and went with the medium with everything I've read. Honestly, I would size up rather than down if you are in between sizes because the way the jacket is designed, to be slim, little extra give will work great to add layering, which you will need with this jacket in cold climates. For reference, I am 6 feet and 175 lbs.

Comfort: 4 / 5
Durability: 5 / 5
Quality: 5 / 5
Warmth: 1 / 5
WaterProtection: 5 / 5

from Nashville, TN
45-54 yrs

Best uninsulated model made...
March 24, 2011

This model, the Theta AR is the perfect combination of durability and light-weight packability. I have another Arc'teryx in the SV variety...and quite frankly, I don't think for the average Joe, you need that kind of abrasion resistance. - I'm sure there are a few that actaully do...but for me, the packability of this (it rolls into its hood) is perfect for my minimalist back-country treking. I've handled the LT...but; I'm a bit circumspect to its durability. Probably fine for city dwellers. ;) The price is the only downside to this jacket/brand. Obviously, it didn't stop me from plunkin' down the dough for its worth it for me. An added bonus for me...the AR is made in Canada! If country of origin has bearing on what you purchase; give these guys/gals at Altrec a call - they've got no problem doing a check on any piece of gear your interested in. I do it all the time, and they've always been helpful.

Pros: Great design, Performance, Cons: Cost
Comfort: 4 / 5
Durability: 4 / 5
Quality: 5 / 5
FitClothes: 3 / 5
Warmth: 3 / 5
WaterProtection: 5 / 5

what i was looking for
August 04, 2011

My old rain jacket was falling apart, so I entered into a big boy research to find the perfect shell that would last. I chose this one after a few weeks of reading countless reviews. Arcteryx was the only choice, but which jacket to choose. I'm 6'3" and slim, so length was important, as was the ability to layer in colder months. I hate umbrellas so i needed a hood I could use in any situation, hat/helmet/none. I also wanted something I could wear anywhere, not only in deep rainy forests. The Theta AR seemed to respond to all of my expectations. It's long enough, but not too long. So waterproof. Looks the bomb (dig the brown coffee). Not sure about durability yet, got it a few weeks ago. This is no rain jacket. This is a life jacket.

Pros: Great design, Build quality, Performance, Ease of use, Cons: Cost

Also Available

Arc'teryx Men's Theta AR Jacket Photo

Black, Buckeye, Nighthawk and Saguaro Green.

Available sizes, while supplies last, include size xs, size small, size medium, size large, size extra large and size extra extra large: xs, s, m, l, xl, xxl.

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