$300.00
Members get an est. $30.00 in rewards

Waterproof, windproof and breathable, the men's Arc'teryx Beta pants will get you through a range of conditions, terrain and activities. Plus, 3/4-length side zippers make them easy to get on and off.

Color: Black
please select a Size
Fits slightly large based on reviews
Quantity
Select size for delivery dates
Shipping restrictions apply.

Members get an estimated $30.00 (10%) back on this item as a part of your annual .

Members get an estimated $30.00 (10%) back on this item as a part of your annual .
To buy,  sign in as an REI Co-op Member or join now.

Features

  • PFAS-free GORE-TEX ePE with a recycled face delivers complete waterproof, windproof and breathable protection
  • GORE C-KNIT™ backer technology is quiet, soft next to the skin, highly breathable and made with recycled content
  • FC0 durable water repellent (DWR) finish repels moisture and is PFAS-free
  • RECCO® reflector aids search and rescue in emergency situations
  • Articulated shaping for fit and movement
  • Low-profile stretch waistband
  • Simplified fly closure with a full circumference belt system
  • 1 thigh pocket
  • Long, 3/4-length separating side zippers provide ventilation and allow easy on-and-off over shoes and boots
  • Eyelets at hems for shockcord attachments
  • Updated low-profile hem reinforcement gives enhanced durability
  • Laminated instep patches guard against cuts and abrasion
  • Inseam: short: 31 in. (79 cm); standard: 33 in. (84 cm); tall: 36 in. (92 cm)

Imported.

View the Arc'teryx Beta Product LineView all Arc'teryx Men's Rain Pants

Technical Specs

Best Use

Hiking

Fabric

3-liter 80-denier GORE-TEX ePE with C-KNIT backer technology, plain weave recycled nylon, beam dyed, FC0 durable water repellent (DWR)

Windproof

Yes

Waterproof

Yes

Type of Waterproofing

3-liter GORE-TEX ePE waterproof/breathable fabric

RECCO Reflector

Yes

Inseam (in.)

31, 33, 36 inches

Weight

10.86 ounces

Gender

Men's

Sustainability

Fair Trade Certified™ Factory

Contains materials that meet the bluesign® criteria

Contains recycled materials

Reviews

36 reviews with an average rating of 4.1 out of 5 stars

71% 15 of 21 reviewers recommended

Write a Review

Adding a review will require a valid email for verification

Average Product Weight

LightweightHeavy

Average Overall Fit Rating

Runs SmallRuns Large

Average Warmth

Not Insulated / WarmVery Insulated / Warm

Customer Images

Most Helpful Favorable Review

17 people found this review helpful
5 reviews with an average rating of 4.0 out of 5 stars
1 year ago
Great Rain Pants
These are great rain pants. In the hard rain they keep you dry. I gave them a 4 and not a 5 for a couple of reasons. First I find that they tend to be bit baggy around the knees or just under. In previous rain pants if they were baggy it would be around the ankles. This just looks weird. I wish they had put pockets on the pants. There is a thigh pocket but if you put something in there it tends to fall against the top of your knee. I'd rather have traditional hip pockets. I prefer to put my phone or other stuff in there versus putting it in my jacket pockets. The pants are well made, but as with some rain gear tends to be a little loud when you are walking
Coachcasa
St. Louis, MO

Most Helpful Critical Review

12 people found this review helpful
5 reviews with an average rating of 2.0 out of 5 stars
1 year ago
Surprisingly large number of design flaws.
I bought these pants and returned them after 3 days mountaineering in Cordillera Blanca, Peru and 1 day of use climbing Mt. Kilimanjaro. I would have returned them after Peru but didn't have time to get new pants for Kilimanjaro. Main issues: (1) the fly zipper tab is super short and unable to be used with gloves on. You can zip down, but then tab gets lost in the fly folds and you can't grab onto it without gloves on. Don't buy these pants if you need to visit a tree in the cold (2) Pants are very baggy. (3) the plastic belt buckle fell off when I took pants off and almost got lost in the snow. (4) they're super loud with any movement. I've had good experiences with Arc Teryx before, so pretty surprised there were so many design flaws. I do like the full zipper sides but that was the only thing I liked about them.
Matteo
Fort Collins, CO
Coachcasa
Location:St. Louis, MO
Age:55–64
Weight:175–200 lbs.
Height:5'9"
Rated 4.0 out of 5 stars
1 year ago

Great Rain Pants

These are great rain pants. In the hard rain they keep you dry. I gave them a 4 and not a 5 for a couple of reasons. First I find that they tend to be bit baggy around the knees or just under. In previous rain pants if they were baggy it would be around the ankles. This just looks weird. I wish they had put pockets on the pants. There is a thigh pocket but if you put something in there it tends to fall against the top of your knee. I'd rather have traditional hip pockets. I prefer to put my phone or other stuff in there versus putting it in my jacket pockets. The pants are well made, but as with some rain gear tends to be a little loud when you are walking

Age:55–64
Weight:175–200 lbs.
Height:5'9"

Overall Fit Rating

Runs SmallRuns Large

Warmth

Not Insulated / WarmVery Insulated / Warm

Product Weight

LightweightHeavy
Kris
Rated 2.0 out of 5 stars
1 year ago

Not waterproof

I was using these pants on a light hike on the mountain. Was not raining and the water went trough to my inner pant. It was wt outside, but i think a pant with this price an "quality" didn't live up to the expectations.

Response from arcteryx.com
Arc'teryx Guest Services
1 year ago

Hi Kris. Thanks for sharing your feedback on the Beta Pant. We are sorry to hear about the issues you experienced and that you are disappointed. We recommend filling out a Product Service Request form and our team will be more than happy to see the solutions we could offer: https://arcteryx.com/ca/en/help/product-service/service-request

Matteo
Location:Fort Collins, CO
Age:45–54
Weight:150–175 lbs.
Height:5'10"
Rated 2.0 out of 5 stars
1 year ago

Surprisingly large number of design flaws.

I bought these pants and returned them after 3 days mountaineering in Cordillera Blanca, Peru and 1 day of use climbing Mt. Kilimanjaro. I would have returned them after Peru but didn't have time to get new pants for Kilimanjaro. Main issues: (1) the fly zipper tab is super short and unable to be used with gloves on. You can zip down, but then tab gets lost in the fly folds and you can't grab onto it without gloves on. Don't buy these pants if you need to visit a tree in the cold (2) Pants are very baggy. (3) the plastic belt buckle fell off when I took pants off and almost got lost in the snow. (4) they're super loud with any movement. I've had good experiences with Arc Teryx before, so pretty surprised there were so many design flaws. I do like the full zipper sides but that was the only thing I liked about them.

Age:45–54
Weight:150–175 lbs.
Height:5'10"

Overall Fit Rating

Runs SmallRuns Large

Warmth

Not Insulated / WarmVery Insulated / Warm

Product Weight

LightweightHeavy
REXL
Rated 4.0 out of 5 stars
1 year ago

Decent pants with some room for improvement

This is for revised version 2024/2025 Fit: Not slim fit like before. True to size with articulated space around knees, which looks a bit bulky. You can probably even fit some knee pads with 1 or 2 layers in them Fabric: PFAS free GoreTex with higher denier than previous, which is more durable but also a bit more stiff and even more noisy (cracking sound) during movement 3/4 side zip instead of full zip - I'm ok with either but some might have strong opinions. No more elastic band (was criticized for being useless). No hanging loop. Surprisingly how much I miss hooking pants so easily with it

jrwolner
Location:chicago, il
Rated 5.0 out of 5 stars
1 year ago

Excellent pants

Truly happy with these pants! I’m 5’10” and weight about 140lbs, grabbed the medium size with regular length. They do fit a little big which is great for layering. The adjustable band around the waist as well as the leg pocket are my favorite features. Although they aren’t really made for skiing, they still preformed very well, just had to pull the zipper up around boots.

Finnegan
Rated 5.0 out of 5 stars
9 months ago

I used this for skiing

Great wind proofing, but also breathable never to hot or to cold as long as I stay active. Since I us this in the winter time I don't usually use the water proof feature but it does come in use occasionally. I know the application of these pants aren't centered around skiing/snowboard so the fit isn't the greatest around the boot area but otherwise they fit amazing. I haven't used them all to much only a couple times but it seems quite durable to me I haven't had any problems. So yes I would recommend this product to others.

Kaja
Rated 1.0 out of 5 stars
1 week ago

Too Baggy

I switched to these from my Norvan shell pants. I prefer the more durable fabric of these, but they are very baggy and very noisy--not very stylish! The ankle cuffs come loose all the time, and the cord hangs out awkwardly. I preferred the Norvan, which had the pant leg taper towards the ankle, and then you would just close the zipper to secure it. I can see why the ankle cuff is adjustable, however--these are clearly meant to be worn over ski boots (and a bunch of layers).

Response from arcteryx.com
Arc'teryx Guest Services
1 week ago

Hello Kaja, thank you for sharing your feedback on the Beta Pant. We understand that the fit and design can feel quite different if you're coming from the Norvan Shell Pant. While both are waterproof shell pants, the Beta Pant and Norvan Shell Pant are designed for different activities. The Beta Pant is built as a versatile shell for hiking and climbing, with a roomier fit and adjustable ankle cuffs to accommodate a variety of footwear and layering systems. The Norvan Shell Pant is designed specifically for trail running, with a more streamlined fit and minimalist features to reduce bulk and maximize freedom of movement. We appreciate your comments regarding the design of the Beta Pant. Feedback like yours is valuable and helps inform future product development. Thank you for taking the time to share your experience.

Peter
Location:Stockholm
Rated 4.0 out of 5 stars
11 months ago

Nice pants, but very wide around the knee area

I ordered these pants but then decided to return them. The pants are indeed of very high quality (as is usually the case with Arc'teryx products), but what bothered me is that they are very wide around the knee area and also lack a nice detail such as a hang loop. I think a hang loop should be a given on Gore-Tex pants, which are often used in wet conditions and need to be dried afterwards. A hang loop doesn’t add any significant weight either.

DustyP
Location:Southeastern Ontario
Rated 4.0 out of 5 stars
4 months ago

Great Hiking Water-proof Pant

I use these as waterproof pants for hiking as a way to layer. I find they are great to quickly slide on when it starts to rain. I found the fit was much bigger than I was anticipating. I got a M-Short. For reference I typically buy 32-R in pants like the gamma. The fit in the Beta is longer than I expected and the short cuts off slightly below my ankles. The waist is large too but what’s nice is the built in belt is great for synching them to fit your waist. I’ve seen some comments about there not being a loop to hang them in the back. While I agree it would be a nice feature, I just hang them by the belt on my hook and that does the trick. Similarly, the one pocket is nice, but I wish there were some more. That’s why I ended up returning my alpha-SL jacket for a Beta-SL. Overall, they do the job. Time will tell how the durability is, but I am impressed with the pant

Brandon
Location:Texas
Age:35–44
Weight:150–175 lbs.
Height:6'0"
Rated 4.0 out of 5 stars
7 months ago

Great pants! Excellent with a design change

They perform very well as a wind and moisture barrier. The pants got four stars and not five for the fact that the side zippers should have might as well come up higher and would have been a more useful feature.

Age:35–44
Weight:150–175 lbs.
Height:6'0"

Overall Fit Rating

Runs SmallRuns Large

Warmth

Not Insulated / WarmVery Insulated / Warm

Product Weight

LightweightHeavy
1 - 10 of 36 Reviews

Questions & Answers

Loading Questions...
10% co-op member reward: $30 $30 Member Reward
Your NameLIFETIME MEMBER#0123456

This item pays for membership!

Buy a lifetime $30 membership and make a $50 purchase by Nov 12, 2026.*

$30

10% Reward*

on this and every eligible full-price item*

+

$30

Bonus Card*

valid for 30 days after joining*

=

$60

Value