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Warmth without the bulk.

Layer the NRS Hydroskin Socks under your wetshoes for an extra layer of foot warmth without a lot of extra bulk. NRS built this sock out of a thin Terraprene material that insulates and protects your foot from cold, wet water. The PowerSpan outer layer provides a four-way stretch for enhanced mobility and durability, and a DWR coating sheds water off the sock to help keep it dry. The ThermalPlush lining increases insulation, repels your foot's moisture, and dries quickly to keep you comfy, and NRS added a titanium laminate to reflect your own body temperature back for even more warmth.

  • 0.5mm Terraprene neoprene material
  • 4-way stretch PowerSpan outer layer with DWR coating
  • ThermalPlush inner lining with titanium laminate

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Here's what others have to say...



  • Familiarity:I've used it once or twice and have initial impressions

I couldn’t find my dated hydroskin socks so repurchased…I use them hiking slot canyons they go in my backpacking and bikepacking kit in the event of low temps and/or water. Take up little or no space in your pack and I think function as a vapor barrier liner to preserve some next to skin warmth.


Filled the gap

  • Familiarity:I've used it several times

I picked these socks up to wear underneath my wading socks while wet wading. The wading boots are made to accommodate the 3mm neoprene booties on the waders. Unfortunately my wading socks aren't that thick so there is some wiggle room in there. These 0.5mm socks from NRS fill the gap perfectly and snug up the boot on my feet. Don't know what I'd do without them. I wear an 11-11.5 shoe and the XL fits great.


Great Product

    We hiked the Paria Canyon in April, 2015. Lots of river crossings. This sock kept sand away from feet, and was remarkably comfortable in or out of water. It is neither waterproof nor very warm, but if you are going to be hiking in water, this is the sock for you


    A wet canyon must

    • Gender:Male
    • Familiarity:I've used it several times

    Me and some buddies all bought these socks for some wet canyons in Zion based on a recommendation of a friend. Let me say they are a life saver, we were hiking all day in water and had it not been for these buddies we all would have had some blistered cold feet, and let me say I'm not usually prone to blisters. Great to keep sand out, definitely warm enough for The Subway in May, more like a second skin than other brand we tried on.