The Bircham Sock is an ankle-length sock thats perfect for high-energy activities like mountain biking, trekking, trail running, and hiking, as well as more relaxed outdoor adventures. Made to keep your feet dry and comfortable, its 100% waterproof and thermoregulating, so you can tackle all kinds of conditions without worrying about getting wet.

Handcrafted in the Sealskinz factory in Norfolk, the Bircham sock blends premium merino wool with performance fabrics, giving you a sock that feels natural but still delivers high performance. The Three-Layer Aquasealz composition helps wick away moisture and regulate temperature, while the Aquasealz hydrophilic membrane keeps your feet dry by blocking out water.

Its ankle-length design adds to its breathability, making it perfect for any outdoor activity. Whether you’re taking on an intense trail run or just enjoying a leisurely hike, the Bircham sock has got you covered, keeping your feet comfortable, dry, and ready for anything!

Technical details

Ideal use:

Trekking, Hiking, Trail running

Materials:

Outer layer: 62% Polycolon, 29% Nylon, 9% Elastane

Middle layer: Aquasealz waterproof membrane

Inner layer: 36% Merino Wool, 36% Acrylic, 18% Polyester, 5% Nylon, 5% Elastane

Key features:

Natural antimicrobial properties

Washable at 40C

Thermoregulation

Moisture wicking

Waterproof

Ankle socks

Stretchy

Durable

Unisex

Specification

Other features