Sealskinz Unisex Waterproof Cold Weather Mid Length Socks  £40.00

In StockS Black/Grey
RRP £43.00
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  • Product Description
  • Customer Reviews
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Sealskinz Waterproof Cold Weather Mid Length Socks - Unisex's

The original, 100% waterproof, windproof and breathable knee length sock with insulation and temperature regulation, perfect for use in colder weather conditions.

It is important to keep your feet dry, warm and protected when outdoors. Our Waterproof Cold Weather Mid-length Socks just do this.

We pioneered the use of a unique hydrophilic membrane that's 100% waterproof yet pulls moisture away from your skin at the molecular level -- keeping you dry and cool all at the same time. And with a Hydrostatic Head of >20,000mm, our socks stay waterproof under the toughest of conditions. Our Waterproof Cold Weather Mids will keep you dry and warm in leaky waders, through stream crossings, and in rain, snow, and mud. Around the clock protection, we like to think that every person should keep a pair in their pack -- just in case.

The perfect mix of waterproofness and breathability, waterproof socks are ideal for keeping your feet dry and warm while cycling, hunting, commuting, working outside, fishing, or hiking!

Review: Perfect fit. Warm and actually fits like a regular socks. They kept my feet warm and dry on a 5 day bikepacking trip in the winter rain. Washed up nice at home (line dry) and ready for next time. Had them out once fully submerged while kayaking and done the job.My feet were warm & dry even though on the outer skin of the socks they were wet.


  • 100% Waterproof Protection in Any Weather - three layer construction for warmth, durability and waterproofing
  • Designed to Keep You Warm, Dry and Comfortable:
    • Our cold weather socks are crafted using a three-layer bonded construction that combines a 100% waterproof hydrophilic membrane with a premium Merino wool interior for warmth and sweat-wicking, and a durable nylon blend exterior with 4-way stretch for great fit and wearability.
    • Designed with warmth in mind these socks are constructed with the finest Merino wool and an added a layer of terry-loop knitting. This loop knitting actually traps heat within the air pockets keeping you warmer when you're in the coldest conditions.
    • Built for comfort and blister prevention. Designed with a seamless construction including hand-linked flat toe seams and the addition of elastic support on the ankle, heel and instep, you won’t notice the seams but will definitely notice the extra comfort and fit.
  • Protects From Water, Wind, Mud, Cold and Blisters
  • Extremely Breathable
  • Wears and feels like a normal stretchy sock
  • Comfort - Merino wool lining for moisture control, insulation and comfort
  • Support - zonal elastication for added support
  • Close fit - four way stretch for comfort and stretch fit
  • Comfort - flat toe seams prevent rubbing
  • Comfort - Footbed padding reduces pressure and absorbs shock
  • Ideal for a Wide Range of Activities:
    • Hiking & Backpacking
    • Mountaineering
    • Cycling & MTB
    • Fishing & Hunting
    • Commuting
    • Working outside
  • UK Handmade & Hand Tested: Exclusively handmade in the UK to our unrelenting standards and attention to detail, every single sock is hand-tested for waterproofness.

Technical Features:

Our 100% waterproof socks are constructed using premium materials and by bonding three layers together to make one highly waterproof and breathable sock:

  • Outer Layer - 90% Nylon, 10% Elastane
  • Middle Layer - 100% Hydrophilic Membrane
  • Inner Layer - 35% Merino Wool, 35% Acrylic, 23% Polyester, 3.5% Nylon, 3.5% Elastane

Merino Wool - Finer than traditional wool with tiny overlapping scales that case each fibre, these scales are hydrophobic (water repellent). Inside it's a different story, the fibre core is hydrophilic (highly absorbant). Merino is therefore a wicking fibre and can absorb and release 10 times more moisture than synthetics. Each fibre can absorb up to one third of its own weight in moisture without feeling clammy or wet to the touch. In our socks and gloves, the moisture is then wicked through the membrane to keep you feeling warm and dry.

Size Guide:

Our Sealskinz socks correspond to shoe sizing. Take a look below to find your perfect fit.

  • The measurements below are your shoe size, so if you are a UK size 7 we recommend you would be a size M (Medium).
  • If you are at the top of a size such as a UK 8 to 8 1/2 we recommend you move up in size as our waterproof socks are thicker than normal socks.
Socks S M L XL
UK shoe size

3 - 5

6 - 8

9 - 11 12 -14
Euro shoe size

36 - 38

39 - 42

43 - 46

47 - 49

US shoe size (men)

3.5 - 6

 7 - 9

10 - 12 13 - 15
US shoe size (women)

5 - 7

8 - 10

11 - 12


Care Instructions:

  • Do Not Machine Wash, Tumble Dry, Dry Clean, or Iron

Waterproof Sock Care:

We don’t like complicated things. And when it comes to the care of your socks, we want to make it as simple as possible. This is the type of sock you can throw in the wash along with the rest of your gear. No need to line dry or wash with special detergents. Since the membrane is a solid barrier, you’ll never need to re-waterproof.

  • Wash at 40ºC/105ºF
  • Low Tumble Dry or Drip Dry
  • Do Not Dry Clean, Iron, or Bleach
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