SKU: 72521285351

Smartwool Classic Thermal Merino Base Layer Bottom - Men's

Sale price$103.50 Regular price$115.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Smartwool Classic Thermal Merino Base Layer Bottom - Men'sWe've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a high level for longer. And our heaviest weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away. Features: Slim Fit 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability,

We've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a high level for longer. And our heaviest weight wool fabric will help keep you warm and comfortable as you ski, run, and hike the day away.

Features:

  • 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

Care:

  • 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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 72521285351

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4.3 ★★★★★
Based on 9 reviews
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S
Verified Purchase
Suzy Q
Battle Creek, US
★★★★★ 4
HIGH waist, correct sizing, ok fabric...NOT SEE THRU!! Cool pants though!
Fit Type: 31" Inseam, Size: Medium, Color: Deep Khaki
If it's a few inches ABOVE my belly button, inseam is correct... but then MED is SUPER baggy in the butt (I have a small butt maybe?) WELL MADE! NOT see thru!! Fabric is kind of stiff, BUT because it's a linen blend, may be beneficial for less wrinkles? 😃 Probably improve if washed. Also tried the small, belly/butt area is better, but super high and a little tight on me. NO off gassing 👏👏👏 Super versatile (dress up or down) Good price.
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Reviewed in the United States on April 23, 2026
W
Verified Purchase
Wrenn
Port Orchard, US
★★★★★ 5
70%linen, 30% cotton pants
Fit Type: 31" Inseam, Size: X-Large, Color: Khaki
Linen cotton blend, soft & not see through. I'm 5'4" & 157 lbs, ordered a XL size & they fit perfectly, just a but long. Took me 8-10 minutes to hem, & now they are my go-to summer pants! Elastic + drawstring waist & wide legs look very stylish. I'm very pleased, will probably order more in a different color. I love the natural linen color, but since I see fabric thickness will try in white since summers where I live are triple-digits. GREAT PANTS for the price!
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Reviewed in the United States on April 17, 2026
C
Verified Purchase
C. M. Long
Fort Morgan, US
★★★★★ 3
These are so-so
Good fit (I’m 5’8”, 215 pounds, and got an XL), cool and light fabric. I wore them on a recent trip to Walt Disney World, and they held up pretty well. They do get wrinkled easily, though, and I was somewhat dismayed to find that the fabric pilled badly in the crotch area (see photo). This was after only one laundering and one vacation where I wore them maybe three days. 😒 I have a feeling that they won’t last for more than one summer season. I expected better for the money, honestly.
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Reviewed in the United States on May 30, 2025
J
Verified Purchase
Jean Sembach
Boise, US
★★★★★ 5
Read the size guide!
Fit Type: 31" Inseam, Size: Large, Color: Khaki
Got the light khaki Large. I am 5'7" and 180#'s. Loved the sturdy yet breathable material and the color. But too small. READ THE SIZE GUIDE! I didn't, and now I have to return and reorder. OK. Got the right size. Love 'em. Comfort and fit are great. Not crazy about having to line dry, but it's the price one pays for having natural fabrics.
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Reviewed in the United States on March 29, 2026
P
Verified Purchase
Pugs Chunk
Port Orchard, US
★★★★★ 1
RED & BLACK PANTS BLEED WHEN DRY AND WILL RUIN WHATEVER THEY TOUCH
Fit Type: 31" Inseam, Size: Medium, Color: Wine
These are very cute and flattering pants, but the first I wore them they turned everything they touched pink. The tops of my sneakers where they touched are now pink. The case of my cell phone that I slipped into my back pocket is now permanently pink. Apparently this is called “crocking” and occurs because there is a heavy excess of "unbound" dye on the surface of the fibers that was never properly rinsed or set during manufacturing. To fix this, I’ll have to go through a two-step process to strip away the excess surface dye and then chemically "lock" what remains. The needed specialized detergent and fixative products will cost another $20 (not to mention the pink sneakers and phone case). The process will take a couple of hours. I suspect the same dry bleeding would happen with other dark colors of these pants. Save yourself the hassle and buy a better, pricier pant in the first place. It’s very disappointing because they fit is great. They do stretch a size or two in the butt and thighs but the waist doesn’t stretch, which is good.
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Reviewed in the United States on March 25, 2026

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