Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Brands

Women's Apparel Reviews

Helly Hansen W LIFA Merino Lightweight Crew

The best sweat-moving shirt of 2021.

Lock Icon

Join O+ to unlock this story.

Already have an Outside Account? Sign in

Outside+ Logo

All-Access
Intro Offer
$3.99 / month*

  • World-class journalism from publications like Outside, Ski, Trail Runner, Climbing, and Backpacker.
  • Annual print subscription to Outside Magazine + 2 Gear Guides.
  • Outside Watch – Award-winning adventure films, documentaries, and series.
  • Gaia GPS – Premium backcountry navigation app.
  • Trailforks – Discover trails around the globe.
  • Outside Learn – Expert-led online classes on climbing, cooking, skiing, fitness, and beyond.
Join Outside+
Backpacker

Digital + Print
Intro Offer
$2.99 / month*

  • Annual subscription to Backpacker magazine
  • Access to all member-exclusive content and gear reviews on Backpacker.com
  • Ad-free access to Backpacker.com
Join Backpacker


*Outside memberships are billed annually. Print subscriptions available to U.S. residents only. You may cancel your membership at anytime, but no refunds will be issued for payments already made. Upon cancellation, you will have access to your membership through the end of your paid year. More Details


Specs

Weight

5.8oz.

The ideal trail shirt has the stink-free properties of merino wool and the quick-dry properties of synthetic fabric, and that’s how this two-layer long sleeve won us over. The interior polypropylene material helped wick away sweat within minutes and never made us itch, even on a foggy 50°F run in California’s Las Trampas Regional Wilderness Park. Plus, the Lightweight Crew’s 100-percent wool exterior kept us warm down to 35°F and fended off the stench that usually builds up in pure synthetics. Testers praised the cut as well: “So many tech tees are clingy, but this one had a relaxed yet tapered cut,” reports one tester who wore it for 100 miles in New Hampshire’s White Mountains. Lay-flat seams on the shoulders and at the sides prevent rubbing under a heavy pack.

w’s XS-XL

When you buy something using the retail links in our stories, we may earn a small commission. We do not accept money for editorial gear reviews. Read more about our policy.