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  • Polyester fabric wicks moisture away from skin and dries quickly
  • 2-way stretch provides a comfortable range of motion and a soft feel
  • bluesign®-certified fabric


View all REI Co-op Men's Hiking/Travel Shirts

REI membership


Best Use Hiking, Running, Fitness
Shirt Style Crew
Fabric Polyester
Moisture Wicking Yes
Quick Drying Yes
Sleeve Length Short Sleeve
Hood No
Gender Men's

Size chart

Sizing notes

SHORT: Some pants are available in short sizes, which generally means an inseam that is 2.5 inches shorter than regular sizes. TALL: Some pants, shirts, jackets and parkas are available in tall sizes, which generally means an inseam that is 3 inches longer and a rise that is 1 inch longer, a shirt or jacket body that is 2 inches longer, a parka body that is 2.5 inches longer and sleeves that are 2.5 inches longer than regular sizes.

Rated 1 out of 5 by from Downward Trend I have been buying tech Ts and Sahara Shirts as all my hiking and exercise shirts for years. I have tried several of the new COOP products and they all fall short. These shirts do not breathe. They do not stretch or give with motion as an exercise shirt should, and they are grossly undersized. Please do not use these to replace the old Tech Ts or Sahara shirts or you will be doing and great disservice to your members. This appears to be something that has been happening with many products I have bought one the last few years, including your everyday wool socks. The old ones were great. The new ones are terrible, and I now use nothing but SmartWool. A growingly dissatisfied customer.
Date published: 2015-10-24
Rated 2 out of 5 by from Uncomfortable Cut First of all, anything from REI usually fits well and meets my expectations. Unfortunately, it's not the case with the new iteration of their tech tee (2015). REI switched the material and changed the cut on my perennial favorite, so it's not as close fitting, not as stretchy, and thus not as comfortable as previously. The polyester blend material feels stiffer (not as much spandex), and the cut feels boxier than previous years' REI Tech T-Shirt. The shirt tail is also shorter. REI has reduced the price significantly, but I feel that the quality has also been sacrificed along the way.
Date published: 2015-02-20
Rated 1 out of 5 by from Mens tech tee I brought tech tees in the past and loved the fit and fabric. I was in the store today to restock in multiple colors but the fit and fabric were completely different. The xl was way too boxy and the L was too tight under the arms. The old tech tee fit perfectly and the fabric had a great hand. What a disappointment. There was also a short/swimsuit style 877594, that was in the same fabric that I asked one of your sales staff about and she said it was discontinued but she had many requests for. I hope you listen to the input and bring back some of these great items that were great for kayaking and working out.
Date published: 2017-04-22
Rated 1 out of 5 by from They ruined the perfect tech shirt! I purchased a size L tech shirt in the store and absolutely loved it. They were out of blue, so I immediately ordered another size L shirt in a different color online. To my dismay, the shirt that arrived was completely different than the one that I purchased in the store. The in-store version was apparently the "old" model, which fit perfectly and was ultra-soft. The "new" model that arrived in the mail was smaller, including "baby-doll" sleeves that were 1-2"inches shorter than the previous version. The material on the new version is also not as soft as the old version. It has a "rubbery" feel to it, rather than a soft/weightless feel. Whoever was in charge of the redesign on this shirt completely ruined a great product. Bring back the old model!
Date published: 2016-06-29
Rated 5 out of 5 by from The best shirt I have ever owned I was surprised to read so many negative reviews because I bought two of these shirts recently and just now logged on to order a half-dozen more. The colors are great, and the fit is literally the best on my body that I have ever experienced with any t-shirt, ever. The fabric is soft but still synthetic, and the price is reasonable. These really are amazing shirts. I'm 5'10, 155lbs, very athletic and lean/muscular. Obviously, your quality of fit will depend greatly on the shape of your body, but I am just in love with how well these fit, how comfortable they are, how functional they are, how reasonably priced they are, and how good they look!
Date published: 2016-11-14
Rated 1 out of 5 by from Please give us back the REAL tech t-shirt REI made the greatest t-shirt ever made, the original REI Tech T-Shirt. Made from a high quality blend of poly and spandex, it had a smooth but not slippery texture, the perfect amount of stretch, a medium hand with great wicking perfect for summer days or for layering in cooler weather. Coupled with raglan sleeves for mobility and a nice look to the fabric that made it possible to wear in all casual social environments, this was truly the perfect t-shirt. It was like something out of a science fiction movie. The garment everyone wore because nothing gets practically better. And now it's gone. To be replaced by...normalcy. Just another non-stretch, cottony feeling, bindy when wet, too light t-shirt with non-raglan sleeves. Something cheap. Like from goodwill. The wardrobe you have to wear because it's all you can find. REI please bring back the REAL tech t-shirt.
Date published: 2016-01-07
Rated 1 out of 5 by from Not Nearly As Good As Previous Years Shirts I went to the store to pick up some new tech t-shirts expecting them to be the same as I have owned before, unfortunately they seem to be a different shirt now. Different feel different construction. Don't know why you change a good thing. Decided against it, and found last year's shirt on clearance and bought one of those instead. Hoping to see my favorite shirt back again soon.
Date published: 2015-07-03
Rated 4 out of 5 by from Not the same Tech Tee of yore I was thrilled to see new tech tees being offered and went to my local REI to pick up one to try out. I'm glad the tees still have the combination of materials of poly and spandex - really helps to keep its structure and gives the shirt some substance that I prefer over 100-percent polyester shirts. However, the cut of the shirt is slightly different and that's where this version diverges with the previous one. The diameter of the sleeves seem smaller so they slightly constrict movement of the arms. Another strange area which seems to restrain movement is the back of the shirt? Front torso is fine. Lower abs area is also fine. But the area around my shoulder and shoulder blades are restricted. Never had this issue in prior tech tees.
Date published: 2015-03-02
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How much does a X-Large REI_Co-Op Tech T-Shirt weigh in ounces?

Asked by: vatolocovaldez
​The XL weighs approximately 6.2 oz.
Answered by: REIservice
Date published: 2017-01-06

Is there any chance you'll go back to the tech tee material and cut from a few years ago?  They were incredible shirts.  I still have a few of them and they look almost new and still feel great.  

Asked by: Cowtown
​This is great feedback, and we are pleased to hear your shirts have performed well. At present, we do not have any plans to make changes to the current, tech t-shirt offering.
Answered by: REIservice
Date published: 2017-06-18

does this shirt have an spf rating? thanks.

Asked by: FitJunkie
​No, this shirt has not been tested this for a UPF rating.
Answered by: REIservice
Date published: 2017-04-18
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