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Gearhead Top Pick
Gearhead Top Pick
Backcountry
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BGA Pines Microgrid Ultra-Lt Baselayer 1/2-Zip Top - Women's

$99.00
Color:Fir

Size:

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Layer smarter in the Pines Ultra-Lt 1/2-Zip Top

We built the Pines Microgrid Ultra-Lt Baselayer 1/2-Zip Top for the days we're skinning up, shredding down, and moving nonstop between the two. The ultralight microgrid fabric sheds heat while we work, then holds warmth the second we stop to strip skins or take in the view. Wicking properties clear moisture off the skin so there's no clammy chill waiting for us at the pause. A next-to-body fit and updated raglan sleeves keep every reach and stride comfortable underneath it all.


What Our Gearhead® Experts Are Saying:

"I run cold at the top of every climb and hot the second I start moving, so this is the one baselayer where the zip actually earns its spot. Drop it before the pitch steepens, zip it the moment we crest into the wind."


Details

  • Zip-neck baselayer vents heat during high-output efforts
  • Microgrid fabric for wool-like warmth without the wool
  • HeiQ Fresh FFL keeps odor at bay through long days
  • Cuff thumbholes keep sleeves anchored under gloves
  • Slim, next-to-body cut disappears under any shell
  • OEKO-TEX® Standard 100 Certified fabric
  • Item #BCCZ38F
Responsible Collection
Recycled/Repurposed
Material
67% recycled polyester, 27% polyester, 6% spandex microgrid back fleece
Insulation Weight
Ultralightweight (125gsm)
Fit
Form-fitting
Center Back Length
26.5in
Style
1/2-zip mock-neck
Pockets
None
Hood
None
Thumbholes
Yes
Anti-Odor
HeiQ Fresh FFL
Activity
Ski, Snowboard
Manufacturer Warranty
Limited lifetime
A man wears the Cedars RWS Merino Lightweight Baselayers

BGA

The Baselayer Collection

For Active Mountain Days

The Baselayer Collection

A closeup of the Pines ultra-light fabric.

Pines Ultra-Light

For warmth without weight

Synthetic fabric built for snowy pursuits but versatile for all outdoors

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A closeup of the Cedars Light-Weight fabric.

Cedars Light-Weight

For active mountain days

Soft, light merino long underwear for moisture management

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A closeup of the Cedars Mid-Weight fabric

Cedars Mid-Weight

For the backcountry or skiing some trees

Mid-weight merino baselayer for warm, robust layers

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Meet Pines

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Men's Balaclava Top

# Women's Black Turtleneck Long Sleeve Athletic Top with Thumb Hole Detail

Women's Balaclava Top G2

A torso shot of the Pines Men's Half Zip top.

Men's 1/2-Zip Top

Women's olive green quarter-zip thermal running top with long sleeves and contrasting rust trim paired with black leggings.

Women's 1/2-Zip Top

A mid-torso shot of the Pines Men's Crew Top.

Men's Crew Top

Woman wearing a black long-sleeved thermal base layer top with a textured fabric and small logo on the sleeve, styled against a neutral background.

Women's Crew Top

Thoughtfully Designed

Ultralight Warmth

Microgrid fleece traps warm air while shedding excess heat for low-bulk insulation on cold mountain days.

Odor Control Technology

An HeiQ odor-fighting finish keeps your baselayer fresher through high-output efforts and repeated use.

Built-In Balaclava

A built-in balaclava and thumbholes offer full baselayer coverage on stormy days.

Chosen By The 2026 Jamaica Bobsleigh Team

Jamaican bobsleigh team member on a snowy outdoor background.

For Long Days Outside

Designed to balance warmth, mobility, and durability, these layers are built for long days outside—before and after time on the ice, and wherever winter takes the team next.

Shop the Jamaica Bobsleigh Team Kit
Jamaica bobsleigh team member on bobsleigh track with bobsled in the background.

Worn By Athletes

Worn by athletes and coaches from the Jamaican Bobsleigh and Skeleton Federation, this gear supports cold-weather training, travel, and recovery in demanding winter conditions.

Shop More BGA Pines

About The BGA Brand

In 1996, Backcountry's founders set out to make the backcountry more accessible. That same spirit drives BGA today. Built on decades of gear experience, BGA delivers the quality, design, and durability you need to get where you're going. Our goal is simple: build reliable, responsibly made gear for people who actually get out there. From weekend missions to dawn patrol sessions, every piece is designed to perform, last, and earn a permanent spot in your kit.

Shop All BGA

Built By Gearheads

We live and breathe the outdoors, so every stitch of BGA gear is made with a mission in mind. Designed in Park City at the foot of Utah’s Wasatch mountains—and tested by our Gearhead® Experts who use it every day—BGA styles are built to perform wherever the snow lands, trail leads or adventure calls.