FITS Heavy Expedition Boot Sock | Merino Wool, Cushioned, Odor-Resistant

Rugged warmth for extreme conditions

Meet the FITS Heavy Expedition Boot Sock, engineered for days when the forecast is harsh and the trail demands your best. A merino wool core traps warmth while actively moving moisture away from the skin, helping feet stay comfortable as temperatures drop and effort rises. The breathable knit adds a soft, dry feel against the skin, making long days on the trail or camp more pleasant.

Secure fit that moves with you

The sock features a deep heel pocket and a Free Range Toe Box that lock in place without slipping. This thoughtful design lets you power through icy ridgelines, rocky passages, or long-haul treks with less need to stop and adjust mid-hike.

All-day cushioning and support

Rugged terrain calls for protection. The heavy cushioning absorbs impact across uneven ground, delivering a stable base for dawn hikes and alpine pushes alike. A tapered compression hugs the foot to boost blood flow and help prevent sag as you rack up miles.

Breathable, odor-resistant performance

Breathability and odor resistance come from the merino blend, helping feet stay fresh on multi-day trips and during intense climbs. The fabric remains comfortable next to skin even on damp, cold days when you’re pushing through challenging terrain.

Designed for serious outdoor use

Designed for those who chase cold horizons—hiking, climbing, marching, or winter camping. This sock pairs with trusted boots to deliver warmth, dryness, and a supportive fit when reliability matters most.

Care and longevity

Rinse after use and air dry to preserve warmth, elasticity, and overall fit across many adventures.

Key benefits at a glance

• Warmth from a merino wool core paired with moisture management
• Breathable fabric that helps feet stay dry and comfortable
• Deep heel pocket and Free Range Toe Box for secure, slip-free movement
• Heavy cushioning to cushion impacts on rough terrain
• Tapered compression that stays in place during long days
• Odor-resistant fibers suitable for multi-day trips

Recommended use scenarios

• Snowfield crossings, winter hikes, and icy ridge traverses
• High-altitude climbs and long expeditions on rugged trails
• All-day wear on cold, damp days where warmth matters
• Extended camping trips requiring reliable footwear comfort