Backcountry Pines Microgrid Ultra-Lt Baselayer Bottom - Men's

Ultralight warmth and moisture control for high-output days in the Pines Microgrid Baselayer Bottom

What Our Gearhead® Experts Are Saying:

"This baselayer's superlight, gridded build is the perfect amount of coverage on my winter hikes. I don't overheat on the climb, and the interior's grid structure traps warm air when I'm taking in the view."

ThePines Microgrid Ultra-Lt Baselayer Bottom manages our body temperature and moisture during our favorite high-alpine adventures. The fabric blend of partially recycled polyester and spandex provides lightweight warmth and comfort in an eco-friendly package, while its smooth face slips easily inside our bibs, and its plush, microgrid backing wicks away our sweat. Plus, the addition of HeiQ Fresh FFL odor control technology keeps us feeling and smelling fresh during a weekend trip.

We built these baselayers to perform beneath competition layers, keeping Jamaica’s bobsleigh and skeleton athletes comfortable from warmup to finish.

Details

Full-length baselayer bottoms for winter hiking, resort days, and beyond
Recycled polyester blend offers thermoregulation and moisture management
HeiQ Fresh FFL odor control technology keeps you fresh
Stay-in-place wide, Goat-branded waistband for added security
Flatlock seams keep you comfortable with chafe-free performance
Close-to-body fit for enhanced mobility and easy layering
Features long john functionality with an overlap front fly
Item #BCCZ33J

Responsible Collection: Recycled/Repurposed
Material: 67% recycled polyester, 27% polyester, 8% spandex microgrid back fleece
Insulation Weight: ultralight (125gsm)
Fit: slim
Style: tights
Pockets: none
Anti-Odor: HeiQ Fresh FFL odor control technology
Activity: skiing, snowboarding, snowshoeing, hiking
Manufacturer Warranty: limited lifetime

Jamaican bobsleigh team member on bobsleigh track with bobsleigh in the background.

Chosen By The 2026 Jamaica Bobsleigh Team

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. 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

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.

Thoughtful, Hidden Details

A wide, stay-put waistband and flatlock seams keep layers smooth and comfortable under bibs.

About The Backcountry Brand

Backcountry began in 1996 with two skiers, a stack of avalanche beacons, and a garage in Park City, Utah. Our roots were humble, and we've grown since then, but our vision is still clear: to sell the best outdoor gear—and to create gear that’s even better through our very own gear and apparel brand.

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Built By Gearheads

We live and breathe the outdoors, so every stitch of Backcountry 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—Backcountry styles are built to perform wherever the snow lands, trail leads or adventure calls.