Sealskinz Waterproof All Weather Mid Sock

Not many things boost morale on the trail like dry feet free of blisters and frostbite. It is also a goal that is sometimes difficult to achieve. Sealskinz waterproof socks are a very good tool for the job and make life easier in difficult conditions.

Three questions arise when something is advertised as waterproof and breathable. The first two are both "is it, though?" (making that squinting Thor face) and the third is a matter of durability.

We have used Sealskinz socks extensively and they are actually 100% waterproof and very breathable - more so than many boots with a waterproof membrane! The hydrostatic head is >20,000 mm and breathability is also at a very good level, we suspect this is in part because the membrane is so close to the skin that it remains warm - all membranes work better in the warm because it reduces condensation.

The sock features a three-layer bonded construction that combines a hydrophilic membrane between a Merino wool interior for warmth and sweat-wicking, and a durable Nylon blend exterior with 4-way stretch for great fit and wearability. The construction omits many seams and the toe boxes are hand-linked to keep everything nice and flat. The elastic supports at the ankles, heels, and insteps improve the fit.

Use with other socks

Liner socks are a good idea for several reasons. They prevent blisters on long marches and allow you to remove moisture from inside the Sealskinz socks by changing just the socks you wear next to the skin. They also improve hygiene and reduce the washing frequency of the outer socks. Finally, any water that makes it to the membrane can feel a bit cool (as if the sock was leaking when it's actually not) but a liner sock eliminates this.

Size info

The socks are true to size and allow a liner sock to be worn underneath. However, if your feet are over the recommended size at all, pick the larger pair. The UK size converts to US sizes simply by +1 whole size e.g. UK 8.0 is the same as US 9.0.

Materials and washing info

Life is peachy! You can throw these in the wash at 40 degrees along with the rest of your gear. No need to line dry or wash with special detergents. Tumble dry cool or drip dry as you like. Since the membrane is a solid barrier, you’ll never need to re-waterproof.

• Outer Layer: 62% Polycolon, 29% Nylon, 9% Elastane
• Middle Layer: 100% Hydrophilic Membrane
• Inner Layer: 36% Merino Wool, 36% Acrylic, 18% Polyester, 5% Nylon, 5% Elastane