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I/O Merino Men's Contact Tight Long Underwear, Navy, Small

by I/O Bio
3.3 out of 5 stars 6 customer reviews

Currently unavailable.
We don't know when or if this item will be back in stock.
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  • 96% Merino Wool; 4% Elastine
  • Manages moisture, insulates when wet, and dries quickly
  • Natural Fiber. Naturally anti-microbial and anti-bacterial, I/O's merino fiber creates a robust fabric that survives years of wear & tear
  • Seamless on the back and smooth seams for sliding into ski boots
  • Fiji
Currently unavailable. We don't know when or if this item will be back in stock.

Product Description

I/O Merino has innovative and advanced wool processing and spinning technologies. You get a natural fiber garment that can create its own microclimate, has the ability to manage moisture with exceptional breathability, resists odour, insulates when wet, has no itch and is incredibly soft due to our patented ‘Low Torque’ spinning technology.  Inside or Outside – You Decide!

Product Details

  • Shipping Weight: 5.6 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B005ME7U4I
  • Item model number: 10-715
  • Average Customer Review: 3.3 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Best Sellers Rank: #1,018,079 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

Customer Reviews

Top Customer Reviews

Verified Purchase
I bought the I/O Bio tights because I was looking for a second pair of running tights for during the winter months. I did not realize until they arrived that they are essentially underwear. However, I have worn them underneath my running pants on my coldest days (mid 20's) and they really made a difference in running comfort. I have a good pair of running pants, but they do get cold as I am starting out. The wool tights got rid of that coldness without getting too warm or interfering with running. Besides being good under my running pants, they also have worked well on cooler days with shorts (upper 30's-lower 40's). They only caveat is to be careful with sizing. I ordered an XXL and the XL would probably have fit slightly better. When you run four to five days a week, in the early mornings, these are worth buying.
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Size: MediumColor: Black Verified Purchase
My husband loves this tight a loooot. It is so soft and light, and thin, breathable, which makes it a must while he went for riding in cold weather. But it was broken while being pulled up... maybe he pulled too fast and too violently...
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Size: SmallColor: Black Verified Purchase
I have been using the I/O Bio contact tight for a hiking base layer. I couldn't be happier with them. They are a great thermal regulating layer (hot and cold) when worn with shorts or pants. Being a wool/spandex blend I would suggest being careful with the material as it is prone to snags if you use them in the back country at all. I haven't had a problem yet but they are rather thin so I am usually mindful. Also they do get rather warm in the sun since they are black. Overall, I couldn't be happier with them even though I wish they came in a lighter color!
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