Helly Hansen Fly Pant
For both the crew top and fly pants, I prefer the HH Lifa to other baselayers because it is polypropylene and not polyester. My most extreme use for it is playing cold weather ultimate - continuous running in nearly freezing weather and wind and rain.
It seems to keep me warmer and drier than the Patagonia or Underarmour equivalents I've tried. I also use it as a baselayer for wading while fly fishing, and as an extra layer to carry for hiking. It is lightweight and packs tightly, so it is a good combination if you might encounter unexpected cold wind or cold.
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Here's what other sites are saying:
Wear the Helly Hansen Men's Fly Pant long underwear for aerobic activities in cool weather. These bottoms wick moisture and dry quickly, so you can sweat your way up a mountain or rush down a ski run and not feel clammy or chilled. They're also antimicrobial, which means they won't stink at the end of the day.
Helly Hansen Men's HH Dry Fly Pant FEATURES of the Helly Hansen Men's HH Dry Fly Pant Lifa Stay Dry Technology Flat lock stitching Low bulk cuffs SPECIFICATIONS of the Helly Hansen Men's HH Dry Fly Pant 100% Polypropylene This product can only be shipped within the United States. Please don't hate us.
Helly Hansen Mens HH Dry Fly Pant - 100% Lifa(R) fabric, it creates a dry layer next to the skin, keeping you comfortable during highly aerobic activities in a wide range of conditions. HH(R)Dry Light insulation, breathability and moisture management. LIFA(R)Stay Dry Technology
- Massey's Outfitters
Helly Hansen Classic HH Dry base layer long johns designed for high aerobic activity. These men's trousers are perfect for exercise and training and ensure comfort no matter how hard you work or play. HH Dry. Light insulation, breathability and moisture management. LIFA Stay dry Technology. Low bulk cuffs. Flat lock stitching. 100% Lifa fabric, it creates a dry layer next to the skin, keeping you comfortable during highly aerobic activities in a wide range of conditions. Available Color(s): Black
- Tahoe Mountain Sports