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Men's Astroman L/S Sun Shirt


A Climbing Favorite With More Protection
FIT: Standard fit
COLOR fatigue
SIZE: XL - In stock
Infinite Guarantee
Sun protection, style and comfort makes this shirt as functional as it is good looking. Built specifically for exposed climbs on sunny days, the Astroman L/S Shirt provides UPF 50+ protection that stretches, wicks and breathes. Additional sun protection comes from the shirt’s Sun Snap Collar™, which folds up and snaps in place to shield your neck from solar rays.
Fabric :
85% nylon
15% spandex stretch woven
Center Back Length :
30½” / 77 cm
Weight :
6.5oz / 184g Avg weight for size L
Fabric Performance :
Movement-Mirroring Stretch
UPF 50+
Design Features :
Concealed Snap Chest Pocket
Ring Snap Closures
Sun Snap™ Collar
AirVent™ Inner Back Yoke


New favorite shirt


I wear long sleeves all summer to keep the bugs and sun off. This is my new favorite shirt, it dries quickly, keeps the sun at bay and when I'm doing paddle sports it dries quickly and doesn't do "the wet shirt cling" overall a terrific shirt. There's an extra button hidden in the collar so you can pop and button the collar for extra sun and bug protection, a definite plus.

Tacoma, WA


Still 5 stars but.....


I have a couple of the astroman long sleeve and short sleeve shirts from the last couple years. I pretty much wear them constantly because of the fit, quality and fabric performance. I figured I better get another one Incase both are dirty so I purchased one of this years shirts. Unfortunately there seems to have been a redesign. There are fewer snaps on the wrists as well as decreased length in the arms and hem. Thankfully the waist size of the shirts has not been increased but the cut is much less athletic. I noticed the same change in the newest feedback flannel so I am not sure if this is a company wide change to appeal to a wider demographic or just these shirts. It is disappointing because as a taller thin athletic guy, outdoor research was the go to place to get great fitting clothes. I still rated it five stars because it is still a great shirt but I really regret not stocking up before they changed the fit. Something to consider if like me you have been buying outdoor research because of their great fit, it just isn't the same and that sucks.



Excellent Sun Shirt!!


Excellent shirt. Material is slick and has a nice skin feel. I wear medium or sometimes large. I am definitely a large in the Astronan series. Large fits great for me 160lbs @ 6ft.

Oaklyn, NJ


Great Shirt


I'm always anxious about fit, having OR gear in both L and XL that fit correctly. The Large is perfect, I am 6'2" 205 lbs. Sleeve and hem lengths are spot on, and chest/abdomen proportions are perfect for an athletic fit without the shirt being way to big and fitting like a sack.

Rochester, NY


Quickly became a favorite


Bought this shirt right before a climbing trip. Love how it looks very sharp for after climbing but performs great while climbing. Super light feel, felt great in warm temps. Quickly became a favorite. Then I realized that it dried super quickly, so I started washing it after climbing in the evenings and it would be ready to use next morning. Only had some 7 days of climbing in it so far, but it is proving more durable than I expected. Was in sharp limestone and no holes or tears yet despite how thin and light it is. Also loved that the pocket is big enough for a large phone or passport but does not feel like it's even there when empty. So good I just purchased a second and have personally recommended to a couple of close friends. Hoping more clothing or pattern/solid colors will be offered in this fabric

Boulder, CO


Perfect fit!


First night wearing it... my wife spills her wine at the restaurant table and the shirt is splashed with Red Wine... I am thinking this sucks. I get a towel with cold water on it and all the wine keeps out!



Light, comfortable and nice look


This is a great hiking shirt that works in any weather.

BC, Canada


Not for me


Purchased and returned. I have to be extremely selective with OR tops and jackets, the sleeves are on the shorter side when compared to some other brands like Marmot and Arc'teryx. I refuse to buy XL for sleeve length so it a large doesn't fit me it's a no go. This seems like a great shirt and fits like a large in most other brands in the body, but wow, such short sleeves. I'd love to see companies offer regular and long steeve shirt options like they do for pants.



My new favorite shirt!


This shirt is phenomenal! It's super light, breathable, incredibly stretchy, and feels silky soft against the skin. It's equally at home at the crag or the bar. Would recommend it for everyone!



Best shirt I own.


Best shirt I own...make that two long sleeve and two short. I just dig 'em. Super light, no wrinkles, packable. I am 5'10", 175, large is perfect. I dig OR gear.

West Dakota



4.9 19






Size & Fit Guide


Measurement shown in:
CHEST 33”84 37”94 40”102 43”109 46”117 49”124
WAIST 27”69 30”76 32.5”83 36”91 39”99 43”109
HIPS 33.5”85 36.5”93 39”99 42”107 46”117 48.5”123
INSEAM 30”76 31”79 32”81 33”84 34”86 35”89
SLEEVE LENGTH 30”76 31”79 32”81 33”84 34”86 35”89
*All sizing is based on your body measurement.
We adjust the garment for intended fit and intended use.