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Men's base layer topsview all (24)24 products

Algonquin Lightweight Crew, men'sby Minus33$19.00$54.99Weight (oz): 6.6100% 17.5 Micron Merino Wool, 170 g/m2 Jersey knit constructionFlat lock seams to prevent chafing
Chocorua Midweight Long Sleeve Crew, men'sby Minus33$21.00$64.99Weight (oz): 11.1100% 18.5 Micron Merino Wool, 230 g/m2 Interlock knit constructionFlat lock seams to prevent chafing
Microweight 150 Zip T, men'sby Smart Wool$30.75$53.80Weight (oz): 8.2100% superfine merino wool Zip-T collar for ventilation. Flatlock seam consrtuction eliminates chafing
PhD UL Short Sleeve, men'sby Smart Wool$33.25$69.95Weight (oz): 4.6Body: 56% Merino Wool, 44% Polyester Mesh: 54% Merino Wool, 46% PolyesterFlatlock seam construction designed to eliminate chafing

Women's base layer topsview all (8)8 products

Midweight 250 Pattern Crew, women'sby Smart Wool$58.25$105.00Weight (oz): 7.4100% Merino WoolMidweight crew with stylish pattern designs.
Midweight 250 Crew, women'sby Smart Wool$70.99$95.00Weight (oz): 7.1100% Merino WoolFeminine fit with set-in sleeves & shoulder panels to eliminate top shoulder seams
Phase AR Crew LS, women's
Phase AR Crew LS, women'sby Arc'teryx$75.00Weight (oz): 4.6Phasic™ AR, Phasic™ SLMoisture-wicking, Breathable, Quick-drying
Midweight 250 Zip T, women'sby Smart Wool$78.45$100.00Weight (oz): 7.9100% Merino WoolSmartWool's warmest baselayer option for women

Men's base layer bottomsview all (9)9 products

Microweight 150 Pattern Boxer Brief by Smart Wool$34.00$50.00Weight (oz): 2.8100% Merino WoolCoats Seamsoft thread on flatlock internal seams for exceptional smoothness and comfort
Microweight 150 Boxer Brief, men'sby Smart Wool$37.95$48.00Weight (oz): 3.596% Merino Wool, 4% ElasteneEmbossed elastic waistband and Coats Seamsoft thread on flatlock internal seams for increased comfort
Microweight 150 Bottom, men'sby Smart Wool$46.00$75.00Weight (oz): 5.5100% superfine merino Coats Eloflex thread at bottom hem openeings for increased durability
Lightweight 195 Bottom, men's
Lightweight 195 Bottom, men'sby Smart Wool$51.85Weight (oz): 6.9100% superfine merino woolForm Fit - Natural Rise
Jersey and Rib knit

Women's base layer bottoms4 products

Midweight 250 Pattern Bottom, women'sby Smart Wool$51.80$100.00Weight (oz): 6.7100% Merino WoolMidweight bottom with stylish patterns
Phase SV Bottom, women'sby Arc'teryx$69.00$79.00Weight (oz): 4.4Phasic™ SV (body) Phasic™ AR (panels)Heavyweight base layer for high output activities in cold temperatures
Midweight 250 Bottom, women'sby Smart Wool$73.95$95.00Weight (oz): 6.7100% Merino WoolWide self fabric covered elastic waistband
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