FOX Defend Water Sock Waterproof MTB Socks Black Large

Typical waterproof socks rely on bulky rubber layers that trap sweat and feel like plastic bags. The FOX Defend Water Sock takes a different path: a three-layer hydrophilic membrane blocks water from outside while actively moving perspiration out, so your feet stay dry from both directions. The seamless knit eliminates friction points that cause blisters, and the merino wool blend lining insulates even when damp. Whether you're splashing through enduro puddles or grinding out a wet commute, this sock keeps your feet comfortable without the clammy feel of ordinary waterproof gear.

Highlights

• Waterproof 3-layer construction with hydrophilic membrane
• Seamless design prevents blisters and hot spots
• Merino wool blend inner lining for warmth and moisture wicking
• Abrasion-resistant outer layer for trail durability
• Ergonomic, snug fit with crew-height cuff

In daily use

Pull them on like any crew sock, but feel the difference: a snug, ergonomic fit that stays put without bunching. The outer nylon-elastane shell sheds mud and brush, while the polyurethane membrane blocks water yet breathes. Inside, the merino-acrylic blend manages moisture and insulates even when damp. After the ride, toss them in the machine on cold—they're built to handle it.

Full specifications

• Brand: FOX
• Series: Defend
• Product type: Waterproof socks
• Intended use: Mountain biking, cycling, outdoor activities
• Waterproof technology: 3-layer hydrophilic membrane
• Outer material: 93% nylon, 7% elastane
• Membrane material: 100% polyurethane
• Inner lining material: 44% merino wool, 44% acrylic, 10% nylon, 2% elastane
• Seam construction: Seamless design
• Breathability: Yes, designed for moisture vapor transfer
• Thermal insulation: Yes, provides warmth in cold and wet conditions
• Cuff height: Crew
• Color: Black
• Size: Large (L)
• Fit: Ergonomic, snug fit
• Durability: Abrasion-resistant outer layer
• Moisture wicking: Merino wool blend inner layer wicks sweat
• Care instructions: Machine wash cold, tumble dry low or hang dry
• Gender: Unisex

Final note

From the FOX Defend line, built for riders who refuse to let weather dictate the ride.