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Outdoor Research
Astroman Short-Sleeve Sun Shirt - Men's

4.785714285714286 out of 5 stars
56 Reviews
$44.53 - $98.95
Up to 55% off
Color:Balsam Plaid


Size Chart


Why We Like the Astroman Short-Sleeve Sun Shirt

While we never seem to think of it in the moment, it's key to find ways to avoid getting roasted by the sun when climbing or hiking exposed routes. We wear the Astroman Short-Sleeve Sun Shirt to the crag because the integrated UPF 50+ rating shields us from harmful UV rays, without sacrificing classic Outdoor Research casual styling.


  • Button-up shirt boasts a slew of hiking and climbing features
  • Hybrid nylon and spandex construction is stretchy for lengthy moves
  • AirVent inner back yoke breathes with you on high-output routes
  • Left welt chest pocket features a snap closure for your cards
  • Synthetic materials are quick-drying and moisture-wicking
  • Item #ODRZ8E1
Responsible Collection
Bluesign Approved
85% nylon, 15% spandex
Center Back Length
1 snap chest
Claimed Weight
[medium] 4.8oz
Manufacturer Warranty

Overall Rating

5 based on 56 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 2 reviews
4 Stars - 5 reviews
5 Stars - 48 reviews

What do you think about this product?


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5 out of 5 stars

January 2, 2024

Love this shirt!

This has become my go to every day shirt! Lightweight, comfortable, stretchy, fast drying. My only desire would be to improve its durability.


Originally reviewed on

5 out of 5 stars

September 30, 2023

Favorite shirt

These are my favorite casual and outdoor shirts. I own several of these in most of the colors. The fabric is light and silky and with just the right stretch. They are nice and breathable for hiking but can also be worn around town or at work. The naval blue and and darker red (from circa 2021?) are my favorites and both look very sharp when paired with white pants. The current orange-red one (redrock) is not as pleasant of a color as the previous darker red. Please bring back the darker red from a few years ago! Also consider making them in more interesting/bolder colors.


Originally reviewed on

4 out of 5 stars

September 2, 2023

Nice shirt .. but

Good, very lightweight shirt but I found the large real snug. Especially the shoulders and real short sleeves. It's not real wrinkle free but 10 min in dryer then hung works


Originally reviewed on

2 out of 5 stars

August 22, 2023

I literally just threw one shirt away.

Childish? Perhaps, but I just left one in the trash can at my hotel and re-wore another shirt. I have concluded there is no way for me to make these shirts presentable for casual wear. The do not come out of the dryer wash and wear, they do not dry wrinkle free if hung wet, and the lowest iron setting that creates steam will melt them. Using a hand steamer is not exactly travel friendly. Sure, I tried the "hand it in bathroom while you shower" routine and it did nothing. So, to anyone here throwing 4 stars and up I am asking to please tell me how to get them to not look like you found it under your bed. I have two more left in my closet and they are in peril of joining the first in the garbage.


Originally reviewed on

5 out of 5 stars

August 17, 2023

Astroman Shirt is fantastic

[This review was collected as part of a promotion.] Comfortable, stretchy, and durable. An extremely well made product that you can tell was well thought out. I bought one shirt and two days later I bought a second one in another color.


Originally reviewed on

5 out of 5 stars

August 8, 2023

New Favorite Shirt

This is my new favorite shirt! I dig how it looks, feels, snaps, and stretches with all my movements! It's really breathable and just awesome for looking amazing on the trail (or anywhere really)! The only negative thing I can say about this shirt is that it doesnt come in a wider selection of colors! I'm getting a couple more!


Originally reviewed on

5 out of 5 stars

August 6, 2023

Great shirt for all activities!

[This review was collected as part of a promotion.] Shirt is very soft, fits true to size. My husband has worn for hiking and loves it, and he has worn it to a baseball game and loves it! Great to dress up or down. Will be buying more colors!


Originally reviewed on

5 out of 5 stars

August 4, 2023

Comfortable! Great Shirts!!!

[This review was collected as part of a promotion.] I have bought six of this shirt in different styles. They are nice looking and very comfortable. They are my go to semi-casual every day shirts of preference!


Originally reviewed on

3 out of 5 stars

August 1, 2023

Too tight

[This review was collected as part of a promotion.] This shirt would fall under the category of "slim". I normally wear medium (5'9" 165 )but this was too tight around the chest. If you buy other "slim" shirts, this would be fine. Very light weight and has a nice feel.


Originally reviewed on

5 out of 5 stars

July 31, 2023

Great looking and functional

[This review was collected as part of a promotion.] I purchased these shirts for a trip to Arizona expecting hot weather. The shirts performed well above what I was expecting. I got several comments and asked where they could purchase them. They kept me cool and comfortable as I could be in 115 degrees.


Originally reviewed on