Smartwool Mountaineering Extra Heavy Crew Socks SW133 Charcoal Heather
Smartwool Mountaineering Extra Heavy Crew Socks SW133 Charcoal Heather Smartwool Mountaineering Extra Heavy Crew Socks SW133 Charcoal Heather

Click Below for Additional Colors

Smartwool Mountaineering Extra Heavy Crew Socks SW133 Charcoal Heather

Size chart
Add to favorites

One of our all-time favorite cold-weather socks. Smartwool's Mountaineering Extra Heavy Crew Socks are made from specially selected Merino Wool Fibers, for warmth and dryness no matter what Mother Nature throws your way. Designed specifically for long hikes in the cold weather, the SW133 features a extra heavy full cushioned leg and foot, and provides full support and shock absorption for intense all day use. Made from 74% Merino Wool. Ideal for hiking, ice climbing, trekking and all other outdoor activities.

Availability: Select Active Size

Features include:

  • Crew Height
  • Extra Heavy Full-Cushion
  • Flat Knit Toe Seam for superior comfort
  • Evaporates and Wicks Moisture
  • Sizing Clearly Indicated on the Sock
  • Smartwool Fit System with Arch and Ankle Support
  • Anti Odor
  • Made in the USA
  • 74% Merino Wool, 25% Nylon, 1% Elastane

Manufacturer: Smartwool

Manufacturer ID: SW133

SKU: SW133_010_gry

Recent Customer Reviews

Average Customer Reviews | Add a review

My guy will wear nothing else, this is his favorite winter sock. We do machine wash and then we air dry to keep the scok for as long as possible.
Very soft, thick, and warm cushioned socks.
Unequalled cushioning, just great socks.
Great purchase for skiing, running, snowshoeing, XC skiing, Winter biking and any winter outdoor sport. I also use them to stay warm when I know I will be outside for long periods of time. These cushioned socks seemed too thick at first, but work really well in low profile boots and running shoes.
Your company has earned a loyal customer. You were prompt, efficient and so easy to use. We love Smart Wool socks- the best and we will now only order from you! thanks!!
1 2 3
GoBros Guarantee

GoBros Guarantee - Our Pinky Swear

When you’re happy, we’re happy. We guarantee that you’ll be 100% satisfied with your purchase.  Here are some promises that we’ll always keep:

  • Free Shipping – Free shipping on orders delivered within the contiguous 48 states.
  • 60 - Day Return Policy – That’s right, two whole months to return your product for a full refund, exchange or store credit.
  • Price Match – Each and every item you see on GoBros is covered by our price match guarantee! Shop with confidence and know that on the off chance you find a lower price, we’ll make sure we match it.
  • Customer Service is Priority #1 – If you need to reach us, call us at 1-866-446-2767, 9:00 AM – 5:00 PM CST.
  • Since 1939 – GoBros has been around in one form or another for over 75 years. We believe in building long lasting relationships that benefit both buyer and seller, and we do this through honest, even handed business practices.