How to Choose Base Layers
REI Co-op Midweight Base Layer Bottoms – Men's Tall Sizes
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An ideal performance layer when the mercury drops, the men's REI Co-op Base Layer bottoms boast a smooth face and low-bulk seams for easy layering and a brushed back for added warmth and comfort.
Shop similar products- Fabric wicks moisture and dries quickly to keep you comfortable
- 4-way stretch delivers a flexible range of motion
- Flatseam construction and a soft elastic waistband reduce bulk and chafing
- UPF 50+ rating protects against sun rays
- 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
- Made in a Fair Trade Certified™ factory
Imported.
View all REI Co-op Men's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | Polyester |
| Sun-Protective Fabric | Yes |
| UPF Rating | 50 |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Fly Opening | Yes |
| Underwear Weight | Midweight |
| Inseam (in.) | 34 inches |
| Gender | Men's |
| Sustainability | Fair Trade Certified™ factory From a Climate Label Certified brand |
REI Co-op Clothing - Men's
| 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.
Buying Advice
More expert advice
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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Oregon Beekeeper
Oregon
Nice legs warmer
6 years ago
Had these for about 60 days and have worn them a lot on cold days and in drafty cold house. They have been great, adding warmth under jeans. Very comfortable temperature, good fit and length. I am 6’3”. I am completely satisfied.
Yes , I recommend this product
Jimmy
Tahoe
excellent for cold weather
4 years ago
I have been using these under jeans or a light shell in Tahoe for 20 degree morning bike rides, skiing, etc and really like them. They're warm, soft and seem durable. I'm going to buy more and bought them for my son. Our inseam is about 36" and these are a good size for us.
Height:6'4"
Age:45–54
Weight:200–225 lbs.
Yes , I recommend this product
Mike
Tall size, warm, and cheaper than wool
3 years ago
Tall size fits me!! And these are cheaper than wool but still decently warm.
Height:6'3"
Weight:175–200 lbs.
Duck
Ia
Tall as advertised
3 years ago
Warm and really long enough. I’m so tired of supposedly tall size long underwear that won’t even stay in my socks there so short. Thank you REI!
Age:65–74
Weight:175–200 lbs.
Height:6'5"
Yes , I recommend this product
Hamid
Hesperia, California
Keeps me comfortable ...
5 years ago
I use layers to stay warm and dry. These are comfortable and useful.
Yes , I recommend this product
Eric
napa, ca.
comfort in winter
6 years ago
flexible fabric, comfortable and warm on colder evenings, mornings
Yes , I recommend this product
Malibu
Ohio
Very long
4 years ago
Very long. I’m 6’3” and they go to my toes. At least 6” longer than the should be.
Age:55–64
Weight:175–200 lbs.
Height:6'3"
No, I do not recommend this product
Rose
Great base layer
3 years ago
Bought these for my boyfriend who is always cold for Christmas a few years ago. He basically lives in them all winter. We wash in the machine on cold and hang dry. They're still going strong. Great quality.
Age:45–54
Weight:125–150 lbs.
Height:6'0"
Yes , I recommend this product
Alex
California
Worth it
4 years ago
Works well outdoors or indoors, can almost be used as an outer layer but not as practical. Warm but can be penetrated by wind without pants which is to be expected...
Age:25–34
Weight:250–275 lbs.
Height:6'5"
Yes , I recommend this product
Anthony N
Boston MA
Perfect combo of cost, quality, sustainability
3 years ago
Exactly what I needed: a high-quality, warm (but not too warm) base layer that didn't make me feel like I was abandoning my principles of sustainable shopping.
Age:45–54
Weight:150–175 lbs.
Height:6'2"
Yes , I recommend this product
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