Darn Tough Womens Mary Fields Over-The-Calf Midweight Work Socks

Color: Shale
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Inspired by the first African American woman to work for the U.S. Postal Service, Darn Tough's Mary Fields Over-the-Calf Midweight work sock is a tall, sturdy sock ready for the long haul. Mary served in the Montana Rockies and we like to imagine this mid-weight, fully cushioned, Merino wool socks would have kept her warm and comfortable and ready for whatever the mountains had to offer. And as always, Darn Tough backs up its tough promise with an unconditional lifetime guarantee.


  • Cushion: medium
  • Weight: midweight
  • Height: knee-high
  • True seamless construction for an ultra-smooth, invisible feel
  • Fine gauge knitting for comfort and durability
  • Moisture-wicking helps keep your feet fresh and dry
  • Regulates temperature for all-season comfort
  • Made in the USA
  • Lifetime Guarantee

Customer Reviews

Based on 2 reviews
k.b. (Tillamook, OR)
They're Darn Tough, 'nuff said!

I am slowly replacing all my socks with Darn Tough socks. This is the first pair of this style that I've bought, and I love them! They fit perfectly and be are so comfortable and warm. I haven't had them long, but count on Darn Toughs to wash beautifully and wear well. Shipment was quick as well.

B.Z. (Bowbells, ND)
Love my Darn Tough Socks

I tried Darn Tough socks a few years ago and have been adding to my collection since. They are the only socks I buy now. The cushion is great. I really like the OTC socks for the colder winter months.