REI Co-op Swiftland Grid Running Tank Top - Women's
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Keep your cool till your cooldown with the women's REI Co-op Swiftland Grid Running tank top. Its wicking nylon/spandex fabric is light and airy, providing featherlight coverage on hot days.
Shop similar products- Nylon/spandex fabric stretches, wicks sweat and dries fast to keep you cool on the trail
- Pinhole grid mesh adds ventilation without compromising on modesty
- Stretch-woven fabric is also abrasion-resistant, so it won't snag when you're running through the woods
- Angled side seams and side vents make moving easy
- Sewn with flat seams to prevent chafing
- Thoughtful strap shape to account for wearing a pack
- Machine wash cold; do not use bleach or fabric softeners; tumble dry low
- 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 Swiftland Product LineView all REI Co-op Women's Tank TopsBest Use | Fitness Running Trail Running |
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Fabric | 73% nylon/27% spandex |
Moisture Wicking | Yes |
Quick Drying | Yes |
Sleeve Length | Sleeveless |
Gender | Women's |
Sustainability | From a Climate Label Certified brand |
XXS | XS | S | M | L | XL | 1X | 2X | 3X | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18W | 20W | 22W | 24W | 26W | |
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Numerical Size | 00 | 0-2 | 4-6 | 8-10 | 12-14 | 16 | 18 | 20-22 | 24-26 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 |
Bust | 31 | 32-33 | 34-35 | 36-37 | 38.5-40 | 41-42.5 | 43-45 | 47-49 | 51-53 | 32 | 33 | 34 | 35 | 36 | 37 | 38.5 | 40 | 42.5 | 45 | 47 | 49 | 51 | 53 |
Sleeve Length | 29.5 | 30 | 30.5 | 31 | 31.5 | 32 | 32.5 | 33.5 | 34.5 | 30 | 30 | 30.5 | 30.5 | 31 | 31 | 31.5 | 31.5 | 32 | 32.5 | 33.5 | 33.5 | 34.5 | 34.5 |
Waist | 24.5 | 25.5-26.5 | 27.5-28.5 | 29.5-30.5 | 32-33.5 | 34.5-36.5 | 37.5-39.5 | 40.5-42.5 | 44.5-46.5 | 25.5 | 26.5 | 27.5 | 28.5 | 29.5 | 30.5 | 32 | 33.5 | 36 | 38.5 | 40.5 | 42.5 | 44.5 | 46.5 |
Hip | 34 | 35-36 | 37-38 | 39-40 | 41.5-43 | 44-46 | 47-49 | 50-52 | 54-56 | 35 | 36 | 37 | 38 | 39 | 40 | 41.5 | 43 | 45.5 | 48 | 50 | 52 | 54 | 56 |
Inseam | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated. Size chart values represent body measurements, not garment measurements. Some women's pants are available in petite and tall sizes. Typically petite sizes fit women 4'11" to 5'3". Regular sizes fit women 5'4" to 5'8". Tall sizes fit women 5'9" to 5'11".
PETITE: Generally, as compared to regular sizes, petite sizes are 2.5 inches shorter in inseam, 1 inch shorter in body length, 1.25 inches shorter in sleeve length and ¾ inch shorter in total rise.
TALL: tall sizes are 3 inches longer in inseam, 2 inches longer in body length, 2.5 inches longer in sleeve length and 1.25 inches longer in total rise.
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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Great tank top for the summer!
I am such a big fan of this tank top! I am 5'3", 130 lb, and got a size S that fits perfectly. It's a boxier fit than other running tanks I've seen, but the cut is actually quite stylish as both a running top or just for everyday errands. Wore this for a 10K race on a 80F+ sunny day; it was very light and didn't get soaked even though I was sweating buckets. If I had one complaint, it would be that I want more styles or colors.
REI crushes it with this tank!
Absolutely love this tank! In a world of crop tops, this top was a welcome Shang, hitting right at the hips. The cut & fit is perfect- not too loose or too tight. The fabric is airy and light and doesn’t show sweat. I mostly wore it under layers while running in chilly temps and at the gym climbing and lifting, however I can tell this too will be my go to in the warmer months for trail running and all my gravel bike races. I will definitely be purchasing in other colors.
Decent functionality
Start with the positive. I wore this to an indoor cycle class, it did dry very quickly after my work out ended and allowed my sports bra to dry out also, while I was doing some chores. However, during the cycling class I felt like it trapped in the heat more than I expected, possibly because of the higher neckline. I also didn't find the cut, shape, or fit to be flattering or comfortable. The material was soft and didn't chaff. But the the arm holes were a bit high, so those rubbed on my armpits. Also, it's much higher rise than I expected or care for in any of my clothing. It wasn't crop top high, but barely went past my belly button--and although I'm tall, my torso is fairly short.
Perfect for an Ultramarathon
I wore this last weekend at Black Canyon Ultra and it was fantastic. No issues with chafing, very cooling material, and extremely comfortable. Highly recommend!
Comfortable Lightweight Tank
Bought this tank to use while running. Pretty lightweight material, not overly stretch. The cut was a little shorter than some of my older running shirts, but I didn't mind as there was no ride up. Overall a very comfortable shirt that I would get again for keeping cool in the summer.
Love at first wear
I had no idea what the texture would be like when I preferred it. Now that it has arrived, I can say it’s paper thin just like the 2023 Adidas “Run Fast 3in” shorts! And as soon as I put it on to try, the size was perfect and cooled my skin that was still-warm-from-the-SF-mid70s-day. I’m so excited to have a tank that actually feels amazing, adds no weight, and helps traffic see me. I’m glad I waited for the price to come down, because it’s so expensive for a tiny piece of clothing, but I’m going to maximize the use now that I have it. I normally wear size XS/S in REI Co-Op brand.
Solid, but could be better.
For me to begin with this top is a little on the short side, not cropped, but not as long as I might like it. I do like my tops a little longer than most and this does sit just below the waist so it would be a normal length for most. The material is very lightweight and breathable, but I found that unlike some wicking tops this one seemed to be not absorbent while also not totally wicking either. It would be great on a run when you know that you are going to be hot and sweaty. I wore it for 2 separate workouts over the course of a week and it tends to stay in place for the most part, it is fitted so if you like something totally loose I would size up. Mine is in a great pink and black abstract pattern that I found flattering and that hides sweat.
Bled in the wash
Nice tank top but the colors bled on EVERYTHING in the wash. It even clung to other synthetic clothes in the wash. Tread very carefully. Now I'm nervous to wash it with anything else.
Good colors, odd fit
I loved rich colors of this top,, However the fit is very odd. It’s flares out under the armpits, The arm openings are so low that it shows half of your bra.. overall, the top is unflattering. Disappointed and a returning. I do not recommend
Breezy and comfortable
This top was light and stretchy and very comfortable to wear. I had to try it indoors (it is winter in Michigan!) but it seems it would be great for a summer run. It's cute enough to wear out as it doesn't look too technical or fit too tightly. The red color is a darker red and very attractive. The top does run a bit short, however. I have a long torso and it was too short for me as I prefer something that looks a little less cropped (22" in the back; I need about 25"). If I liked that look, it would be great in the summertime though! All in all, a very nice top that I have no hesitation recommending, especially if you have a shorter torso or like a shorter length for summer that still covers.