Best-Selling Baselayers

36 products
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Black short-sleeve t-shirt with raglan sleeves, a dark gray chest logo, and an orange inner collar trim. Grey short-sleeve t-shirt with raglan sleeves, a crew neck, a black chest logo, and an orange interior neck label.
+3
Men's Wick Short Sleeve Crew

Lightweight merino wool short sleeve crew for moisture wicking performance all season.

$85.00
807 reviews

NEW COLOR

Men's Furnace Hoody Dark gray hoodie with a snap button placket, V-shaped chest seam, subtle left chest logo, and thumbhole cuffs.
+5
Men's Furnace Hoody

Heavyweight merino wool hoody with thumbholes and three-snap collar for cold weather warmth.

$210.00
601 reviews

NEW COLOR

Men's Kiln Hoody Brown hooded long-sleeve top featuring a quarter-zip, zippered chest pocket, orange logo, and thumbholes.
+6
Men's Kiln Hoody

Midweight merino wool hoody with thumb loops for all-season moisture wicking and warmth.

$150.00
1287 reviews
Gray long-sleeve athletic shirt with raglan sleeves, flatlock seams, thumbholes, and a black logo on the chest. Black long-sleeve athletic shirt with a crew neck, raglan sleeves, a subtle dark gray chest logo, and thumbholes at the cuffs.
+3
Men's Wick LS Crew

Lightweight merino wool crew with thumb loops for moisture wicking performance all season.

$100.00
702 reviews
Brown thermal leggings with a "FIRST LITE" logo waistband and a front fly. Tan men's thermal base layer leggings with a First Lite logo waistband and a front fly opening.
Men's Furnace Long John

Heavyweight merino wool leggings with flatlock seams and articulated fit for cold weather warmth.

$130.00
1002 reviews
Dark olive green short-sleeve crew neck t-shirt with raglan sleeves, subtle textured fabric, and a small tan logo on the lower right. Dark brown crew neck t-shirt with raglan short sleeves and a small tan logo on the front lower right hem.
Women's Wick Short Sleeve

Lightweight merino wool short sleeve crew for moisture wicking performance all season.

$85.00
44 reviews

NEW

Olive green long-sleeve Henley shirt with a ribbed texture, 3 buttons at the placket, and a "FIRST LITE" logo on the chest. Light tan First Lite long-sleeve Henley shirt with a horizontal ribbed texture, raglan sleeves, three brown buttons, and ribbed cuffs.
Men's ThermaGrid Merino Wool Henley

Midweight merino wool grid fleece henley built for odor-resistance, breathable warmth, and year-round performance.

$120.00
123 reviews
Grey long-sleeve hooded base layer shirt with thumbholes and a black logo on the left chest. Black long-sleeve hooded shirt with thumbholes and a subtle chest logo.
+5
Men's Wick Hoody

Lightweight merino wool hoody for moisture wicking and sun protection all season.

$130.00
813 reviews
Dark brown quarter-zip pullover with a zippered chest pocket, light logo, and thumbholes. Taupe long-sleeve quarter-zip top with textured fabric, zippered chest pocket, embroidered logo, and thumbholes.
+3
Men's Furnace Quarter Zip

Heavyweight merino wool quarter zip with flatlock seams and ergonomic cuffs for cold weather warmth.

$180.00
995 reviews
Brown base layer leggings with a First Lite branded elastic waistband and a front pouch. Taupe men's First Lite thermal leggings with an elastic branded waistband and a fly.
Men's Kiln Long John

Midweight merino wool leggings for all-season moisture wicking and warmth.

$110.00
476 reviews
Olive green long-sleeve base layer shirt with an orange logo on the chest, visible flatlock seams, and thumb loops at the cuffs. Camouflage long-sleeve crew neck shirt with an orange chest logo and thumbholes.
+4
Men's Kiln Crew

Midweight merino wool crew with thumb loops for all-season moisture wicking and warmth.

$120.00
600 reviews
Coyote brown long-sleeve crew neck shirt with a dark brand logo on the left chest and a visible neck tag. A long-sleeve shirt in multi-tone brown, green, and tan camouflage with an orange logo on the left chest.
Men's Yuma Synthetic Long Sleeve Crew

Ultralight synthetic crew with thumb loops, HeiQ Pure Antimicrobial, and Burlington No Fly Zone® for hot weather performance.

$95.00
77 reviews
Light brown long boxer briefs with a brown FIRST LITE branded waistband and a front fly. Olive green long boxer briefs with a brown FIRST LITE branded waistband and a front fly.
Men's Wick Long Boxer Brief

Lightweight merino wool brief with a 10" inseam for moisture wicking performance all season.

$50.00
419 reviews

NEW

Dark green hooded long-sleeve quarter-zip shirt with a ribbed texture and small chest pocket. Grey textured quarter-zip hoodie with a black zipper, a small zippered chest pocket, and a "FIRST LITE" logo.
Men's ThermaGrid Merino Wool Hoody

Midweight merino wool grid fleece hoody built for odor-resistance, breathable warmth, and year-round performance.

$140.00
168 reviews

NEW COLOR

An orange long-sleeve button-up shirt with a pointed collar, two chest pockets, and a small black square logo patch on the left chest, shown on a plain white background. Dark brown long-sleeved shirt with a button-down collar, silver-toned buttons, and two chest pockets with a logo on the left.
Men's Rugged Wool Field Shirt

Heavyweight, durable merino wool button-down shirt built for hard use in the field.

$200.00
90 reviews
Taupe long-sleeved quarter-zip base layer top with a mock neck, brand logo, flatlock seams, and thumbholes. Dark brown quarter-zip long-sleeve shirt with a tan chest logo, visible flatlock seams, and thumbholes on the cuffs.
+3
Men's Kiln Quarter Zip

Midweight merino wool quarter-zip for all-season moisture wicking and warmth.

$130.00
450 reviews
Men's Wick Game Bag Brief Olive green boxer briefs with a dark brown "FIRST LITE" logo waistband and front contour pouch.
Men's Wick Game Bag Brief

Lightweight merino wool brief with internal divider pouch and mid-length cut for moisture wicking performance all season.

$50.00
373 reviews
A hooded long-sleeve quarter-zip shirt in a tan, brown, green, and orange camouflage pattern, featuring an orange logo on the left chest. Brown, tan, and green camouflage hooded long-sleeve shirt with a quarter-zip front, integrated mesh face mask, and orange chest logo.
Women's Yuma Synthetic Hoody

Ultralight synthetic hoody with thumb loops, HeiQ Pure Antimicrobial and Burlington No Fly Zone® for hot weather performance.

$125.00
14 reviews
Olive green long-sleeve quarter-zip base layer with a textured knit, mock neck, and thumbhole cuffs. Camouflage long-sleeved base layer top with a quarter-zip, thumbholes, and an orange logo on the lower right.
Women's Furnace Quarter Zip

Heavyweight merino wool quarter zip with flatlock seams and ergonomic cuffs for cold weather warmth.

$180.00
105 reviews
Olive green high-waisted leggings with a V-shaped front waistband seam and textured fabric. A woman models an olive green thermal base layer set with a quarter-zip long-sleeve top and matching leggings.
Women's Furnace Long Jane

Heavyweight merino wool leggings with flatlock seams and articulated fit for cold weather warmth.

$130.00
159 reviews
Olive green thermal pants with a brown First Lite logo elastic waistband and a functional fly. Taupe base layer pants with a First Lite branded elastic waistband, front fly, and ankle zippers.
Men's Kiln Zip Off Long John

Midweight merino wool legging with full-length side-zips for easy layer changing.

$135.00
333 reviews
Dark brown long-sleeve quarter-zip top with a tan chest logo and thumb holes. Walnut long-sleeve top with a 1/4 zip collar, raglan sleeves, flatlock seams, thumb loops, and a dark stylized logo on the left chest.
+4
Men's Wick Quarter Zip

Lightweight merino wool quarter zip with thumb loops for moisture wicking breathability and ventilation all season.

$115.00
231 reviews
Olive green 3/4 length men's base layer bottoms featuring a 'FIRST LITE' branded elastic waistband and a fly. Brown 3/4 length First Lite base layer bottoms with branded waistband and fly.
Men's Furnace Zip Off Boot Top

Heavyweight merino wool leggings with a 3/4 length and side zippers for easy layering in cold weather.

$155.00
250 reviews
Men's grayish-brown 3/4 length base layer pants with a dark elastic First Lite logo waistband and a fly. Men's grayish-brown 3/4 length base layer pants with a dark elastic First Lite logo waistband and a fly.
Men's Kiln Boot Top Bottom

Midweight merino wool leggings with a 3/4 length for all-season moisture wicking and warmth.

$100.00
172 reviews