SM525 Hydro-Block Waterproof Sock (OTC Cut) (NEW)

The Hydro-Block OTC (Over-the-Calf) Medium Weight Waterproof Sock is built for anglers and hunters who refuse to let cold, wet conditions slow them down. Featuring a 100% waterproof, breathable membrane, it delivers 8,000mm waterproof protection to help keep feet dry during cold-water wade fishing, rainy days, muddy treks, and long hours in wet boots, waders, or fishing shoes.

Sooner or later, every hunter and angler meets the same problem: waterproof gear that stops being waterproof. A slow leak in duck waders, boots still soaked from the morning hunt, rain-drenched fishing shoes, or a surprise seep through old footwear can turn a good day uncomfortable fast. Hydro-Block socks give you a simple backup plan when your boots or waders let you down. Keep a pair in your blind bag, boat, truck, or gear tote and you’ve got an easy layer of waterproof protection ready when conditions, or equipment, fail.

A 10,000g breathability rating allows heat and sweat vapor to escape, helping reduce clammy feet and overheating while keeping comfort steady throughout the day. Inside, a Merino wool liner adds warmth, softness, and natural moisture control, while the durable 3-layer construction provides medium-weight insulation and dependable protection for long days in the water, woods, or field.

Whether you’re wade fishing in cold water, hunting through wet ground, dealing with leaky boots or waders, or slipping into shoes that never fully dried, Hydro-Block keeps your feet Bone Dry. Warm. Ready.

QC Waterproof Testing Statement

Every Hydro-Block sock is individually waterproof tested before it leaves the factory. This quality-control process confirms that each sock meets our waterproof performance standard, giving customers dependable protection they can trust when conditions turn cold, wet, and unforgiving.

Better protection means better hunt-fish days, guaranteed.

Key Points

• Each sock is individually waterproof tested
• OTC (Over-the-Calf) Cut
• 100% waterproof protection
• Durable 3-layer construction
• Breathable membrane helps prevent clammy feet
• Backup protection for leaky boots or waders
• Creates a dry barrier inside wet boots or fishing shoes