Mountaineer - OTC - FITS®

Mountaineer - OTC

29 reviews

Mountaineer - OTC

29 reviews

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  • The 100% Merino wool interior provides excellent moisture control and comfort while the nylon exterior provides maximum durability and abrasion resistance.

    Other critical features include:

    • Berry Compliant.
    • Fully cushioned foot and leg.
    • Merino wool next to skin feels great and is naturally anti-microbial and flame resistant.
    • Nylon reinforcement on the outside of the sock for increased durability.
    • Heel Lock® provides heel security that limits the chances of a blister when combined with a properly fit boot.
    • Dynamic Toe Cup® limits the amount of material in toe box to prevent bunching in a critical area of the foot.
    • Knitted construction naturally moves the seam back from the sensitive toe area.

    Material Specifications:

    • 69% Merino Wool
    • 24% Nylon
    • 4% Polyester
    • 3% Lycra

    Designed to be the best socks you've ever worn.


    Moisture Wicking

    Designed for stay-dry breathability & performance


    Full Contact Fit

    No uncomfortable bunching, slipping, or rubbing


    Smart Cushioning

    Extra padding in active zones: toe, arch, & heel


    2-Year Warranty

    Quality-made in the USA & guaranteed to last

    Merino Wool

    All our socks are made with 18.5m superfine knit, suit-grade performance Merino wool.

    Odor Resistant



    Omega Performance Yarn

    Our custom blend of man-made fibers selected for the best breathability and fit.



    Moisture Wicking

    Customer Reviews
    4.9 Based on 29 Reviews
    5 ★
    4 ★
    3 ★
    2 ★
    1 ★
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    Filter Reviews:
    United States

    Great sock!

    Warm and comfortable, they keep my feet in top top shape during a long day of wildfire mitigation on my property in the Colorado Rocky Mountains.

    United States

    Great sock!

    Warm and comfortable, they keep my feet in top top shape during a long day of wildfire mitigation on my property in the Colorado Rocky Mountains.

    Robert S.
    United States United States

    Outstanding socks

    Without question, these are my favorite Fits socks. They are warm and really stay on my legs. I have a pair on right now. I’m getting ready to order some more!

    Jon P. Dalton
    United States United States

    Best socks I've ever worn.

    A friend turned me on to Fits socks almost 4 years ago, since then I've worn nothing else. With you military/tactical line all I can say is I wish they were around when I was in the service in the 90's. My friends and family mock me because I always tell them the secret to life is the brief felling you get when you fist put on a new pair of good socks, well you socks hit that nail on the head every time. Y'all have a customer for life.

    Michelle S.
    United States United States

    Mountaineering socks

    Overall, I like these socks. I was disappointed when they arrived that they weren’t soft like my other Fits socks. I’ve only worn them once but they kept my feet warm and I didn’t notice they weren’t as soft. I think they’ll be great!

    Laureen M.
    United States United States

    Always Comfy

    FITS have been comfy, hard-wearing, if a bit pricey.

    Ryan L.
    United States United States

    Thick and Long

    Good cushion and fit. For sure OTC! These are full length socks. Would be best in winter due to thickness and how high they go.

    Mark V.
    United States United States

    Doesn’t slide down!

    Super comfortable in all weather! Hike 10 to 15 miles and they are still hugging your knee.Also great for overseas flights as a compression sock.


    Sock Sizing

    The Perfect Fit Starts With the Right Size.

    Your sock size shouldn’t be a guessing game. Our socks range from small to double XL, but the best way to know the perfect fit for you is to match your shoe size to the chart on the left. That way, you’ll know the size you select will give you the fit and feel you expect.

    Between sizes? Go with your gut, but rest assured that your socks will still fit great. If you receive your order and find yourself wishing you’d gone up or down a size, just let us know. We’ll happily send you replacements for your preferred size.

    Concerned about laundry mix-ups? All FITS® socks are coordinated by color and size, based on the colors you see on the size chart. So, you won’t have to worry about mixing up your sizes with the other FITS® wearers in your home. (But stray socks mysteriously going missing in the dryer? Unfortunately, we can’t help with that.)


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    How Do You Determine Sock Size?

    Sock sizes are typically measured in inches, not by your shoe size. So, a sock size 6-8 will comfortably fit someone whose feet are between six and eight inches long. However, at FITS®, we make it easy for you to choose the ideal sock size without having to measure your foot. Simply use our sock size conversion chart based on your shoe size to select the right fit for you. 

    How Do You Measure Your Foot for Socks?

    To measure your foot for socks, measure the length from the heel of your foot to the tip of your longest toe. The measurement in inches correlates to your sock size. For example, if your foot is 10 inches long, a sock size 9-11 should fit you comfortably. At FITS®, you can skip this step and find your sock size based on your shoe size using our conversion chart. 

    What Is the Sock Size Conversion?

    The sock size conversion refers to sock size compared to shoe size. While all companies may vary slightly on which size socks to purchase based on your shoe size, you can always measure your foot to find the right fit for you. 

    What is Sock Size to Shoe Size?

    Because sock sizes are determined by the length of your foot in inches vs. your shoe size, shoe and sock sizes differ. The FITS® sock size to shoe size conversion is as follows:

    Knowing this makes it easy to choose the ideal sock size based on your shoe size without measuring your foot. 

    What Age is Sock Size 9-12?

    Sock sizes typically don’t correlate with age. For kids, age can be a general indicator of what size sock they’ll need, but everyone is different. An adult sock size 9-12 fits anyone whose feet are approximately nine to twelve inches long. For kids’ sock sizing, check with the company to find exact details to ensure your little one gets the perfect fit. 

    Got more questions about finding the perfect sock size for you? Let’s talk.



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