REI Co-op Swiftland 5" Running Shorts - Men's
Hit the trail and leave your pack at home! The men's REI Co-op Swiftland 5 in. running shorts have plenty of pockets for your phone, gels and more—and they have a built-in, brief-style liner.




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- Ultralightweight recycled nylon/spandex grid fabric stretches, breathes well, wicks sweat and dries fast to keep you cool on the trail
- Built-in, brief-style liner made of soft mesh offers cool, breathable support
- Outseam vents maximize airflow and range of motion
- Supportive waistband stays put; internal waist drawcord fine-tunes the fit
- Secure-zip back pocket on the waistband fits a phone
- 2 smaller stash pockets along waistband—1 on each side—fit nutrition or energy gels; right pocket includes an internal key loop
- Internal card pocket on built-in brief liner
- Chafe-free seams for comfort
- Reflective hits on front and back
- Machine-wash warm; do not bleach; 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 Men's Running ShortsBest Use | Running Trail Running Fitness |
---|---|
Fabric | 73% recycled nylon/27% spandex |
Lining Fabric | Brief-style liner: 86% polyester/14% spandex |
Inner Liner | Yes |
Moisture Wicking | Yes |
Quick Drying | Yes |
Number of Pockets | 4 |
Inseam (in.) | 5 inches |
Gender | Men's |
Weight | 3.9 ounces |
Sustainability | Contains recycled materials From a Climate Label Certified brand |
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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Perfect running short for mid distance runs
I was looking for a lightweight running short for the 5 - 10 mile distance in the heat and found these. They are perfect, light, and can fit one gel in each side pocket. A phone fits perfect in the zip pocket if you needed to bring that along. I knocked a star off because the liner could be a little bigger and supportive, but overall a great short. I'm 5'10, 165 lbs and the medium fits perfect.
Wanted to love these
I want to love these, but the liner is kind of ruining it for me. These are great shorts in almost everyway, love the fit, love the waist band, love the pockets, especially the increased size of the rear one (from previous generation). My only problem, and it's a bit of a big one, is the liner. The brief style is not it for me. I'm always mildly aware of it, it always feels like my...stuff...is about to come out, it's just not great. If it had more of a boxer brief style like the 7" I would be majorly in love with these shorts.
Light, Fast, and Ready to Move
Light, Fast, and Ready to Move – The Perfect Running Shorts The REI Co-op Swiftland 5” Running Shorts are exactly what I’ve been looking for—no fuss, no bounce, just performance. The sizing was spot on (medium fit like a glove), and right out of the gate they felt incredibly lightweight and comfortable. Whether I’m hitting the trail or pounding pavement, these shorts stay put and never ride up. The material breathes well, dries quickly, and has just the right amount of give for those uphill scrambles or longer efforts where comfort matters most. The real surprise? The back pocket. It’s discreet but surprisingly spacious—fits my iPhone securely without that annoying flopping around you get in lesser designs. I’ve worn these in the thick Florida heat, and they’ve held up beautifully—no chafing, no soggy mess, just reliable, high-performance comfort. These shorts feel like they were made by runners, for runners. If you’re serious about your gear, these deserve a spot in your drawer—and probably a second pair in your cart.
Light, Fast, and Ready to Move
Light, Fast, and Ready to Move – The Perfect Running Shorts The REI Co-op Swiftland 5” Running Shorts are exactly what I’ve been looking for—no fuss, no bounce, just performance. The sizing was spot on (medium fit like a glove), and right out of the gate they felt incredibly lightweight and comfortable. Whether I’m hitting the trail or pounding pavement, these shorts stay put and never ride up. The material breathes well, dries quickly, and has just the right amount of give for those uphill scrambles or longer efforts where comfort matters most. The real surprise? The back pocket. It’s discreet but surprisingly spacious—fits my iPhone securely without that annoying flopping around you get in lesser designs. I’ve worn these in the thick Florida heat, and they’ve held up beautifully—no chafing, no soggy mess, just reliable, high-performance comfort. These shorts feel like they were made by runners, for runners. If you’re serious about your gear, these deserve a spot in your drawer—and probably a second pair in your cart.
Very well designed shorts.
I’m very impressed with the design and thoughtfulness that went into these shorts I love having small pockets for keys AirPods and phone. Also the fabric is super airy and comfortable. I would typically run with a 7 inch inseam but I really like these.
Light running shorts
I just received these and went for a 5 mile tempo run. These shorts are so light and airy, it's like wearing nothing. These are my new warm/hot weather shorts and my marathon race shorts. I'll be buying more.
Need better liner
Need to improve the lining on these. The 7" version is designed much better. Everything else is great but had to return because the support was so poor.
Great running short at a fair price
These shorts are very lightweight, fit well, the fabric is very soft and the pockets and seams are well made.
Running
Perfect for running. I ran in one and then bought another pair.