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Description
- Slim Fit
- 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance
- Fit updated to improve functionality while enhancing aesthetics
- Merino-covered elastic interior waistband and traditional fly design
- Flatlock seam construction designed to minimize chafing
- Size M inseam: 30" (76 cm)
- Knit in Vietnam: 100% Merino Wool
- Garment Weight: 228 g = 8.04 oz
- Machine Wash Warm Gentle Cycle.
- Do Not Iron Decorations.
- Do Not Bleach
- Tumble Dry Low
- Cool Iron As Needed
- Do Not Dry Clean
- Wash With Like Colors
Product Reviews
Review Snapshot
by PowerReviews
Most Liked Positive Review
Working man's best friend
I'm not a hiker or a snowboarder. I'm not likely to climb Everest or compete in a dog sled race across the straits of Alaska. I suspect a lot of you that have happened past this review aren't either. Probably, like me, you work in the cold in the winter, maybe sit in a deer stand on the weekends. I'...
Most Liked Negative Review
Not as well made as they used to be
I have always loved merino wool stuff, namely smart wool stuff. I have several base layer shirts that I have had and used for years. They are durable and well made, and will last man more years. Because of this, I decided to buy a pair of 250 bottoms. Very comfy, standard long john bottoms. My ...
Reviewed by 575 customers
The best base layer ever
Under ski pants, nothing feels better than Smartwool. They look good too.

Official Response by Smartwool, a division of VF Outdoor, LLC
We love hearing from brand fans like you! Thanks for the kind review.
Greatest Brand Ever
My wife and I are climbing Mt. Kilimanjaro in late June and this purchase completes my hiking gear for the hike. I wear my 4 x 1/4 zip 150 & 250 weight tops all the time and recommend Smartwool to any one and everyone.
I may need a second pair.
Perfect fit, great base layer for new England winter, waiting for the bus or walking to work.
Love the
My husband wears only wool base layers now (me too) for XC skiing. These are perfect. And nice to get green. Sick of so many black pairs.
Great product with one slight adjustment
I purchased this for my base layer. I do wear 3/4 pants but wanted an added layer on cold days. I like the product but my one complaint (or suggestion) is to offer a 3/4 or short/ tall versions. I'm a short 5'10" and a medium was too long. I originally purchased a large and they were swimming in me.
Ideal for camping, hiking, and snowboarding!
I'm beyond excited about this base layer! It pairs perfectly with the matching hoodie for ultimate comfort, ensuring I stay dry and cozy no matter the weather. They're ideal for all of my camping, hiking, and snowboarding escapades! Plus, that vibrant green color pops against a rainy forest backdrop—absolutely stunning! I can't wait to get my hands on more!
10/10 would recommend
These bottoms are such a great base layer for the winter. I have tried other base layers and these being 100% wool really take the cake.
Great Baselayer!
Great base layer! Very warm and doesn't restrict movement! Highly recommend for anyone outside for hours during winter. Use them during winter days for delivering packages.
Loved it!
We were worried the medium would be too short for my 6'4 boyfriend, but it fits great! He's never owned Smartwool and was blown away with the comfort.

Official Response by Smartwool, a division of VF Outdoor, LLC
We believe Base Layers make the perfect gifts, although we are a bit biased. Thank you for the kind review too!