"This carousel displays a list of buttons that updates the main product image when a button is clicked"
  • Smartwool - Merino 250 3/4 Bottom - Men's - null
    Smartwool - Merino 250 3/4 Bottom - Men's - On-Model Front
Smartwool - Merino 250 3/4 Bottom - Men's

Smartwool Merino 250 3/4 Bottom - Men's

Temporarily Out Of Stock

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

Can't wait? Consider one of the other Men's Midweight Long Underwear Bottoms we have in stock.

View Similar Products

Tech Specs

100% merino wool
Insulation Weight:
Recommended Use:
all-mountain skiing, backcountry skiing
Manufacturer Warranty:
2 years

Don't get your socks in a bunch.

When your ski socks already go up above your calf, you don't need any excess material getting in the way. The SmartWool Men's Merino 250 3/4 Bottom keeps you warm while you shred, and the 3/4-length means it won't bunch up in your boots. Merino wool not only feels soft against your skin, but it's also highly breathable and naturally regulates temperature to keep you warm and dry whether you're taking laps at the resort or touring in the backcountry.

  • A warm baselayer designed for cold ski days
  • 250 Merino count is extra warm and soft on the skin
  • Moisture-wicking material keeps you comfortably dry under layers
  • 3/4-length is compatible with over-the-calf ski socks
  • Flatlock seam construction helps prevent chafing
  • Slim fit and mid-rise fit comfortably under pants

Must Have

  • Familiarity: I've used it several times
  • Fit: True to size

These are my go-to bottom base layer for any cold temp high output activity. The material feels great on the skin and is the perfect weight for colder temps. Durability has been great so far after multiple washes. Highly recommended!

Wanted these to work

  • Familiarity: I returned this product before using it
  • Fit: True to size
  • Size Bought: small

The material weight and feel of these was awesome. I so wanted them to work, but the leg length and tightness of the opening just didn't work. The fit through the seat and thighs was great. Maybe I just need to do more calf raises.

Solid Base Layer

    Toasty, just these under a shell (11 degrees) and no problem – fit is true to size.

    So soft and warm!

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: Med

    I usually wear a medium, I have a 32" waist but I think to go with small might have been the right way to go with these. Aside from size, the weight and feel of these is amazing! They are a good mid-weight, so great to layer with for cold days, or just these for more mild days. I use these touring also, they breathe well and don't get damp when you get sweaty. Looking at getting a 250 weight top now!

    very comfy but...

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: Runs large
    • Size Bought: Large.

    They are super comfy. I put then on and it felt amazing. O ly issue is I purchased these as a base layer under my pants or jeans but since they dont ride all the way down your leg, once you put on jeans or pants this item will also slide up with your pants while you put your pants up. I thought the very bottom if the baselayer would be more snug and tight on my ankle but it is loose on the bottom. I just need to get a baselayer that goes all the way down the leg to the ankles. But I would def use this around the house or just in general cause of how comfy they were. Also as for the fit I ordered a large and medium. I have thick thighs and thick ankles and have asome extra on my but due to working out. And large was to big for me since I wanted it very tight as a base layer. I was good with a medium and it fit tight. I Have a 31 inch waist with a small gut. So if you want it rtight around legs get a size smaller. If not it will fit fine.

    Very satisfied, very warm

      Great product feel. Has been a good fit for me. Got the medium, fits true to size. Excited to get some use out of it this season.

      Smartwool Merino 250 Men's Apparel

        Learn more about the fit, features, and benefits of Smartwool Merino 250 Men's Apparel. #gofarfeelgood

        My go-to for skiing

        • Familiarity: I've put it through the wringer
        • Fit: True to size

        Great baselayer with the perfect length to not fall below the ski boot line and cause any unnecessary friction. Kept me warm with a relatively soft and lightweight material.

        A Solid Go-To Baselayer

        • Familiarity: I've put it through the wringer
        • Fit: Runs large
        • Size Bought: Small

        According to the size chart, I should be a medium but opted for the small for a better fit. The length could be an inch longer, but still fits under the top of your sock, ensuring it stays in place. Provides just enough warmth and plenty of comfort during your day on the hill.

        So warm

          Maybe a bit to warm, only used once since I have been going lighter on my base layers. That is what it is designed for though.


            A bit looser than a typical base layer, but that is exactly how I like my layers. Haven't washed them yet but assume they will shrink a touch. Look great, super warm, and comfy.

            Great again by Smartwool

            • Familiarity: I've used it once or twice and have initial impressions
            • Fit: True to size

            Smartwool does a great job combining warmth, breathability, and some sweat wicking. These have been great so far. Really enjoy the 3/4 length to keep a wrinkle fee surface between the boots and socks.

            Warmer than expected

            • Familiarity: I've used it once or twice and have initial impressions
            • Fit: True to size
            • Size Bought: Medium

            Thought it was gonna to be too thin when it finally arrived in mail, but it's keeping me plenty warm but I'm not sweating in them either. Length is perfect when wearing ski boots.

            So comfy!

            • Familiarity: I've used it once or twice and have initial impressions
            • Fit: True to size
            • Size Bought: Medium

            Material is soft and wicking. I wore them on a cold day (10 degrees) under an insulated shell and got all sweaty with exercise but they remained dry. Pants are the perfect length to tuck into the top of my ski socks. Extra space in the butt for that snowboard squat. :) Love these!

            3/4 length = great idea

            • Familiarity: I've used it several times
            • Fit: True to size

            I got these for my Dad. He's been skiing in them in New England since Christmas and loving them. He especially loves the 3/4 length so they don't interfere with his ski boots.

            The size chart suggested XL, and they fit great.


              Like the length so that I can add layers when skiing without affecting my boots

              Quality Base Layer

              • Familiarity: I've used it several times
              • Fit: True to size
              • Size Bought: Large

              Comfortable, warm, quality merino wool product. I have worn them several times in temps ranging from -10 to 35 as a base under my Marmot Mantra non insulated shell. I remained comfortable and warm from low activity to high. Would definitely purchase again and probably will.

              Never Seem to Overheat

              • Familiarity: I've used it several times
              • Fit: True to size
              • Size Bought: Small

              I am a big fan of these 3/4 cut long underwear. I bought these specifically for cold weather mountain biking and cold weather cragging and bouldering. They are nice and don't get in the way of high socks, or stick down when I cuff my pants climbing. They are not too heavy even though they are smartwool heaviest style, and are very comfortable. The one thing I wish smartwool would do it add a little elastic to their baselayers so that they don't ride up easily. Once you stretch out the cuff it tends to stay that way until you wash them again. Other than that they are top notch