OTC Socks Thermal Performance Gear - Diamondown
OTC Socks Thermal Performance Gear - DiamondownOTC Socks Thermal Gear - Diamondown

Diamondown™ is completely different from ALL other comfort management gear. It will keep you COMFORTABLE and DRY in warm weather, and keep you WARM in cold weather. All our socks are engineered for performance with input from a foot specialist professional.

OTC SOCKS Comfort Management Gear are similar to the Crew Sock, including arch support, but extend “Over The Calf” to below the knee, for wearing under high boots or skates, or just for more leg protection. OTC SOCKS are thin and light weight insulated socks with amazing moisture wicking capability from the patented revolutionary fiber blend.


  • Like the Crew Sock but with arch support and long leg portion to just below the knee
  • Useful for wearing under boots, horseback riding, etc.
  • For all year round wear
  • Soft and comfortable, light weight
  • Fast drying, moisture wicking – they do not retain water
  • Machine wash and dry – will not shrink and long lasting
  • Color – Black
  • Patented revolutionary fiber
  • Proven in extreme conditions
  • Made in the USA


Please select the following based on the Shoe size chart.

Clear selection

OTC Thermal Socks provide Microevaporative Cooling (cool, comfort) and the unique Radiant Barrier (warmth) – maintains twice the natural body heat compared to any other fiber keeping you warm and comfortable outdoors. As Thermal Performance Gear it is great for cold climate wear, maintaining 91% of body heat and 40% of radiant body heat.

Actual Customer Comments

I just wanted to tell you I had the chance to use a pair of Diamondown™ socks and glove liners this past weekend while I was pheasant hunting in South Dakota. It was cold, snowy and pretty darn windy, one day I think the wind chill was well below zero…. but my hands and feet never got cold.  In fact, I took my gloves off and just wore the liners and my hands were as comfortable as could be. You have a great product and I am looking forward to staying warm in the future with my Diamondown™ gear.  Thanks and best wishes for continued success with Diamondown™“.   



Large, Medium, Small, XL

There are no reviews yet.

Be the first to review “OTC Thermal Socks Performance Gear”