Heavy Weight OTC Sock by Sitka

Built for extreme conditions, the Sitka Heavy Weight OTC Sock in Sitka Black is the ultimate cold-weather performance sock. Designed for extended hunts, snow treks, and backcountry expeditions, this sock combines a premium merino wool blend with PrimaLoft® insulation for exceptional warmth, moisture management, and long-term comfort. The over-the-calf height ensures maximum coverage, while reinforced Cordura® zones and anatomical cushioning deliver durability and support where it matters most.

Key Features & Benefits

• Merino Wool & PrimaLoft® Insulation

  Delivers high-performance thermal retention while wicking moisture to keep feet dry and warm.

• Over-the-Calf Height

  Provides full-length coverage to protect against cold, debris, and boot friction.

• Cordura® Reinforced Heel and Toe

  Increases durability in high-abrasion zones to extend sock life.

• Performance-Mapped Cushion Zones

  Strategic padding reduces foot fatigue and pressure without adding unnecessary bulk.

• Mid-Foot Anti-Twist Band

  Maintains a secure, stay-put fit for all-day stability inside boots.

• Seamless Toe Construction

  Minimizes friction and hotspots, enhancing comfort during long treks.

• Moisture-Wicking and Odor-Resistant

  Natural properties of merino wool help regulate temperature and prevent odor buildup, even when damp.

Specifications

• Color: Sitka Black

• Material: Merino wool blend with PrimaLoft® insulation and Cordura® reinforcement

• Height: Over-the-Calf (OTC)

• Weight Class: Heavy Weight

• Sizes Available:

  • Medium: Men’s 6–8.5 / Women’s 7–9.5

  • Large: Men’s 9–11.5 / Women’s 9.5–12

  • Extra Large: Men’s 12–14.5 / Women’s 12+

• Construction Details:

  • Seamless toe

  • Reinforced heel and toe

  • Compression and support zones

  • Anatomical fit

  • Anti-twist mid-foot band

• SKU: 600854