REI Co-op Flash Shade Hoodie - Men's
For sunny days on the trail and beyond, this lightweight REI Co-op hoodie has you covered. The performance grid fabric wicks and dries fast. And the ergonomic thumbholes hold the sleeves in place.
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- Our lightest-weight UPF hoodie at 110 g/m² (compared to 150 g/m² fabric in our Sahara Shade hoodie)—with breathable performance grid fabric that wicks moisture and dries fast
- ShadeFactor™ 50+ fabric provides UPF 50+ sun protection that is inherent in the material and never washes away
- Made with recycled polyester and a yarn that uses LanzaTech carbon-capture technology
- LanzaTech is a biochemistry company that's developed technology to capture carbon emissions from industrial sites, such as steel mills, before they enter the atmosphere
- These carbon-rich gases are then converted into ethanol, which can be used to manufacture new materials like polyester
- 3-panel scuba-style hood with vent/ponytail hole in back
- High neck coverage for added sun protection
- Ergonomically positioned thumbholes keep your sleeves in place
- Semifitted for technical layering
- Back length: 28 in.; Tall sizes: 30 in.
- Locker loop
- Machine wash warm; do not bleach; tumble dry low
- Contains materials that meet the bluesign® criteria
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
View the REI Co-op Flash Product LineView all REI Co-op Men's Hiking Shirts| Best Use | Hiking Watersports |
|---|---|
| Shirt Type | Mock / Turtleneck |
| Fabric | 67% recycled polyester/33% LanzaTech polyester (bluesign approved) |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50+ |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Sleeve Length | Long Sleeve |
| Hood | Yes |
| Thumbholes | Yes |
| Gender | Men's |
| Weight | 6 ounces |
| Sustainability | Contains materials that meet the bluesign® criteria Contains recycled materials From a Climate Label Certified brand |
Fits true to size based on reviews
| XS | S | M | L | XL | XXL | XXXL | 24 IN Waist | 26 IN Waist | 28 IN Waist | 30 IN Waist | 31 IN Waist | 32 IN Waist | 33 IN Waist | 34 IN Waist | 35 IN Waist | 36 IN Waist | 38 IN Waist | 40 IN Waist | 42 IN Waist | 44 IN Waist | 46 IN Waist | 48 IN Waist | 50 IN Waist | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chest | 35 | 36 - 38 | 39 - 41 | 42 - 45 | 46 - 49 | 50 - 53 | 54 - 57 | |||||||||||||||||
| Sleeve Length | 32 | 32.5 | 33 | 33.5 | 34 | 34.75 | 35.5 | |||||||||||||||||
| Waist | 27.5 | 28 - 30 | 32 - 34 | 36 - 38 | 40 - 42 | 44 - 46 | 48 - 50 | 24 | 26 | 28 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
| Hip | 33.5 | 34.5 - 36.5 | 37.5 - 39.5 | 41 - 43 | 44 - 46.5 | 47.5 - 50.5 | 51.5 - 54.5 | 32 | 33.5 | 34.5 | 36.5 | 37 | 37.5 | 38.5 | 39.5 | 40.25 | 41 | 43 | 44 | 46.5 | 47.5 | 50.5 | 52.5 | 54.5 |
| Inseam | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated. Size chart values represent body measurements, not garment measurements.
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.
Capri or cropped pants have an intentionally shorter inseam—reference the technical specs instead of this chart.
Inseam is measured to the floor.
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.


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Customer Images
Decent shirt, fit seems off for me
I got this to help keep cool in the sun and keep the sun off my head and neck. Being that it is still winter, I am not sure how well it performs for that. I will say, in the house it seemed like it would be good. I felt like it wasn’t super breathable as I got pretty warm having it on in the house. Again, may perform better actually being outside. The one area I did not like was the sizing. I ordered a XXL. I am 5’10” about 300 pounds. Fit decent in the shoulders and chest but I felt it was short. Other brands the XXL is much longer and I feel they fit better. Overall, not a bad shirt. I think it would do what it is advertised to do, but the fit feels off.
Great lightweight breathable sun hoodie
Previously I have been in love with the REI Sahara Sun hoodies. When I saw this new Flash hoodie on the website my interest was piqued. Once seeing it in person in the store I was sold. The fabric is so much lighter and breathable. The hood provides better coverage leaving only my face exposed. With a baseball cap sun coverage is excellent. Using this for all of my recent hikes I have found it wicks and dries quickly. The breathability of the material is way ahead of my old Sahara sun hoodies. The material feel is not too slippery, and there is a slight texture from the grid pattern in the fabric (though not annoying or noticeable in use). Layering under an R1 Air fleece jacket was surprisingly a breeze. Usually long sleeves with any sort of fabric friction will want to grab on to the fleece and ride up your arm as you slide through the sleeves. Durability wise I took a tumble which led to abrasions on my arms and side but the fabric stayed intact with no tears evident. Cleaned up super easy too! I'm 6'1" and 260lbs and the XXL fits perfectly. Sleeve length feels long until you use the thumb holes and it sits perfectly down to the knuckles. There is just enough elastic in the cuff that you can easily scrunch them up your forearm and they stay in place. The hood opening frames my face just right without feeling claustrophobic or snug. There is a slight sheen to the fabric in the sunlight. With the green colorway it really looks nice, but the blue and grey show it as well. Nothing crazy, but it has just a little extra pop in outdoor lighting. Overall a great sun hoodie for outdoors adventures. I've only used it hiking so far, but could see myself taking this on cycling and kayaking adventures easily. This will be my go-to this summer. Maybe switching to the classic Sahara Sun hoodie when the temps drop and a little heavier material would be welcome.
Loving it so far. Used it over a T for running on a 40 degree day, used it under an insulating layer running on a 10 degree day. Looking forward to taking it on long hikes and bike rides when the sun is shining. Fit is nice — I’m 188 lbs 5’11” athletic build and Large is great. Thumbholes are well placed.




