4.9 star rating 561 Reviews
(526) (28) (5) (1) (1)
Show all reviews
True to size:
It runs small
True to size
It runs big
Show all Show less
Thank you for posting a review!
We value your input. Share your review so everyone else can enjoy it too.
Thank you for posting a review!
Your review was sent successfully and is now waiting for our staff to publish it.
- Reviews (561)
write a review
Sort: Select
Updating Results
M
Martin L.
Verified Buyer
5.0 star rating
28/01/24
True to size:
It runs small
True to size
It runs big
True to size:
It runs small
True to size
It runs big
Excellent long underwear
Review by Martin L. on 28 Jan 2024 review stating Excellent long underwear
Fit was perfect and exactly as expected. Kept me warm cross-country skiing in very cold conditions, and on days when the temperature rose to point I didn’t really need them any more, they still wore comfortably. Well made too.
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
S
Shaun W.
Verified Buyer
5.0 star rating
16/12/24
True to size:
It runs small
True to size
It runs big
True to size:
It runs small
True to size
It runs big
Worth the the premium price
Review by Shaun W. on 16 Dec 2024 review stating Worth the the premium price
Fit great (Medium size ). Not too loose or excessively long inseam. Nice wide waistband. Material feels comfortable. Would definitely purchase again. 5’10”, 155lb, 33” waist, 32” inseam - perfect fit MEDIUM
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
N
Nicolas M.
Verified Buyer
4.0 star rating
31/05/24
Très bien aux jambes, mais
Review by Nicolas M. on 31 May 2024 review stating Très bien aux jambes, mais
Très bien aux jambes, mais grand au niveau des fessiers et entrejambe.
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
J
Joe
Verified Reviewer
5.0 star rating
26/05/24
True to size:
It runs small
True to size
It runs big
True to size:
It runs small
True to size
It runs big
Perfect Base Layer
Review by Joe on 26 May 2024 review stating Perfect Base Layer
Fits great. Feels great. Wicks moisture perfectly and keeps me warm. No complaints.
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
A
Anthony C.
Verified Buyer
5.0 star rating
12/03/25
True to size:
It runs small
True to size
It runs big
True to size:
It runs small
True to size
It runs big
Perfect for most days
Review by Anthony C. on 12 Mar 2025 review stating Perfect for most days
Keeps me warm under shell down to -15C. Would need additional layer below that temp.
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
M
Matthew C.
Verified Buyer
5.0 star rating
12/03/25
True to size:
It runs small
True to size
It runs big
True to size:
It runs small
True to size
It runs big
Fits great and is really comfortable
Review by Matthew C. on 12 Mar 2025 review stating Fits great and is really comfortable
Great fit and nice comfort. Haven’t tested them in extreme cold but going for late walks in winter it’s been more than warm enough. I also love the colour!
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
D
David J.
Verified Buyer
5.0 star rating
22/02/25
True to size:
It runs small
True to size
It runs big
True to size:
It runs small
True to size
It runs big
Really nice base layer
Review by David J. on 22 Feb 2025 review stating Really nice base layer
I have used these for running and Nordic skiing under a medium weight pair of tights between -15C and -25C. Perfect amount of warmth and not itchy at all. I will buy another pair.
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
F
Frédéric C.
Verified Buyer
5.0 star rating
22/02/25
Grandeur du produit:
Marked Size Down
Marked Fit to Size
Marked Size Up
Grandeur du produit:
Marked Size Down
Marked Fit to Size
Marked Size Up
Très confortable
Review by Frédéric C. on 22 Feb 2025 review stating Très confortable
Toujours très agréable de porter de la laine de mérinos à 100%, ne pique pas, garde la chaleur, ne conserve pas d’odeur. Les seuls défauts sont son prix élevé et sa relative fragilité. Je ne pourrais pas m’en passer pour la sports d’hiver!
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
D
Darryl S.
Verified Buyer
5.0 star rating
13/02/25
True to size:
It runs small
True to size
It runs big
True to size:
It runs small
True to size
It runs big
Lightweight and warm
Review by Darryl S. on 13 Feb 2025 review stating Lightweight and warm
I've have merino blends but wanted to try 100% merino will bottoms and though this is thinner and lighter than another blend pair I have it is just as warm
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
S
Steve T.
Verified Buyer
4.0 star rating
06/02/25
Grandeur du produit:
Marked Size Down
Marked Fit to Size
Marked Size Up
Grandeur du produit:
Marked Size Down
Marked Fit to Size
Marked Size Up
Qualité et confort
Review by Steve T. on 6 Feb 2025 review stating Qualité et confort
Ce caleçon est de grande qualité. Je l’utilise lors de mes sorties de skis de fond comme couche de base par temps très froid. J’aurais aimé que la taille soit moins haute, mais ce n’est qu’une préférence personnelle. Je les recommande!
On Classic Thermal Merino Base Layer Bottom Boxed - Men's|-|Caleçon long thermal Merino classique en boîte - Homme
Smartwool
Classic Thermal Merino Base Layer Bottom Boxed - Men's
CAN $139.99
4.9 star rating 561 Reviews
Color:
Deep Navy
Size:
Include our
Lifetime Membership
for $34.99 to save 5% & get free returns
We've updated our Men's Merino 250 Base Layers Bottom to bring you better fitting, more functional tights. 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.
• Our slim fit is intended to follow the contours of the body
• 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation and odor resistance
• Flatlock seam construction designed to minimize chafing
• Fully functional fly
• Merino-lined elastic waistband designed for maximum comfort
• Size medium inseam: 30" (76 cm)
• 100% Merino Wool. Exclusive of Decoration.
Care instructions:
• Machine wash warm gentle cycle. Wash with like colors. Do not bleach. Do not dry clean. Tumble dry low. Cool iron as needed. Do not iron decoration.
Specifications
Material |
|
Baselayer Weight |
|
Pant Length |
|
Fit |
|
Eco-friendly |
|
Availability:
Canada Only

Availability:
Canada Only
