Men's Underwear Men's

REI Silk Long Underwear Bottoms - Men's
$44.50

REI Silk Long Underwear Bottoms - Men's Tall
$44.50

Icebreaker Bodyfit 200 Oasis Underwear Crew - Wool - Men's
$54.93 - $80.00
(up to 31% off)

Patagonia Capilene 3 Long Underwear Bottoms - Men's
$49.00

REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's Tall
$39.50

REI Heavyweight Polartec Power Dry Crew Shirt - Men's Tall
$44.50

REI Heavyweight Polartec Power Dry Long Underwear Bottoms - Men's
$44.50

Icebreaker Bodyfit 200 Crew - Wool - Men's
$44.93 - $65.00
(up to 31% off)

REI Heavyweight Polartec Power Dry Zip-T Top - Men's Tall
$49.50

REI Lightweight Polartec Power Dry Long Underwear Bottoms - Men's
$19.93 - $29.50
(up to 32% off)

SmartWool Midweight Boot Top Long Underwear Bottoms - Wool - Men's
$75.00

REI Heavyweight Polartec Power Dry Zip-T - Men's
$49.50

Patagonia Capilene 2 Crew Top - Men's
$39.00

Ibex Woolies Crew Shirt - Wool - Men's
$29.83 - $70.00
(up to 57% off)

REI Silk Long-Sleeve Crew Shirt - Men's
$44.50

SmartWool Microweight Boxer Briefs - Wool - Men's
$45.00

Patagonia Merino 2 Lightweight T-Shirt - Wool - Men's
$44.93 - $65.00
(up to 31% off)

Ibex Woolies Crew Shirt - Wool - Men's
$80.00

Patagonia Silkweight Boxer Briefs - Men's
$30.00

REI Lightweight Polartec Power Dry Long Underwear Bottoms - Men's
$34.50

REI Briefs - Men's
$16.50

Patagonia Capilene 2 Long Underwear Bottoms - Men's
$45.00

REI Midweight Polartec Power Dry Long Underwear Bottoms - Men's
$39.50

Ibex Zepher Zip-T Shirt - Wool - Men's
$44.83 - $110.00
(up to 59% off)

REI Heavyweight Polartec Power Dry Crew Shirt - Men's
$44.50

Patagonia Merino 2 Lightweight Crew Shirt - Wool - Men's
$70.00

Patagonia Merino 3 Midweight Crew Shirt - Wool - Men's
$85.00

SmartWool Midweight Funnel Zip Top - Wool - Men's
$100.00

Patagonia Lightweight Boxer Briefs - Men's
$30.00

ExOfficio Give-N-Go Boxer Briefs - Men's
$26.00

Icebreaker Bodyfit 200 Long Underwear Bottoms - Wool - Men's
$80.00

SmartWool Microweight Long-Sleeve Crew Top - Wool - Men's
$49.93 - $70.00
(up to 29% off)

REI Lightweight Polartec Power Dry Crew - Men's
$16.93 - $24.50
(up to 31% off)

REI Boxers - Men's
$19.50

Patagonia Capilene 2 Long-Sleeve Crew Shirt - Men's
$45.00

Patagonia Capilene 3 Crew Top - Men's
$49.00

REI Silk Long-Sleeve Crew Shirt - Men's Tall
$44.50

REI Midweight Polartec Power Dry Crew - Men's Tall
$39.50

Ibex Zepher Crew Shirt - Wool - Men's
$44.83 - $100.00
(up to 55% off)

Ibex Zepher Long Johns Long Underwear Bottoms - Wool - Men's
$85.00

REI Heavyweight Polartec Power Dry Long Underwear Bottoms - Men's Tall
$44.50

REI Lightweight Polartec Power Dry Zip-T - Men's Tall
$36.50

Patagonia Patagonia Merino 3 Midweight Long Underwear Bottoms - Wool - Men's
$85.00

Icebreaker Bodyfit 200 Mondo Underwear Zip T-Neck - Wool - Men's
$59.93 - $90.00
(up to 33% off)

SmartWool NTS Microweight Long-Sleeve Zip-T - Wool - Men's
$59.93 - $80.00
(up to 25% off)

REI Lightweight Polartec Power Dry Long-Sleeve Crew - Men's
$29.50

Patagonia Capilene 2 Long-Sleeve Zip-T Shirt - Men's
$49.00

REI Lightweight Polartec Power Dry Zip-T - Men's
$15.83 - $32.50
(up to 51% off)

REI Lightweight Polartec Power Dry Long-Sleeve Crew - Men's
$34.50

ExOfficio Give-N-Go Boxers - Men's
$25.00 - $26.00
(up to 4% off)

SmartWool Midweight Long Underwear Bottoms - Wool - Men's
$80.00

SmartWool Microweight Long Underwear Bottoms - Wool - Men's
$49.93 - $70.00
(up to 29% off)

ExOfficio Give-N-Go Sport Brief - Men's
$20.00

SmartWool NTS Microweight T-Shirt - Wool - Men's
$44.93 - $65.00
(up to 31% off)

REI Lightweight Polartec Power Dry Crew - Men's
$29.50

SmartWool Midweight Long-Sleeve Crew Top - Wool - Men's
$80.00

SmartWool Midweight Long-Sleeve Zip Top - Wool - Men's
$90.00

Patagonia Capilene 3 Zip-T Shirt - Men's
$59.00

REI Midweight Polartec Power Dry Crew - Men's
$39.50

REI Midweight Polartec Power Dry Zip-T - Men's
$44.50

REI Midweight Polartec Power Dry Zip-T - Men's Tall
$44.50

Patagonia Merino 3 Midweight Zip-Neck Shirt - Wool - Men's
$95.00

Patagonia Merino 2 Lightweight Long Underwear Bottoms - Wool - Men's
$70.00

ExOfficio Give-N-Go Briefs - Men's
$20.00

REI Boxer Briefs - Men's
$19.50

Patagonia Capilene 1 Stretch Boxer Briefs - Men's
$30.00

Patagonia Silkweight Print Boxers - Men's
$30.00

Patagonia Lightweight Briefs - Men's
$25.00