Base Layer Reviews Best Base Layers Best Men's Base Layers Best Women's Base Layers 36 Product Reviews Filter & Sort Base Layers for Men Smartwool Classic Thermal Merino 1/4 Zip 4.8 1 2 3 4 5 $120 ListCheck Price at Amazon Base Layers for Women Arc'teryx Rho Hoody 4.8 1 2 3 4 5 $140 ListCheck Evo (on sale!) Base Layers for Men REI Co-op Midweight Half-Zip 4.3 1 2 3 4 5 $60 ListCheck Price at REI Base Layers for Women Smartwool Classic All-Season Merino 4.1 1 2 3 4 5 $90 ListCheck Price at Backcountry Base Layers for Women REI Co-op Midweight Base Layer Crew 4.1 1 2 3 4 5 $55 ListCheck Price at REI Base Layers for Men Merino.tech Crew 4.0 1 2 3 4 5 $50 ListCheck Price at Amazon Base Layers for Men Carhartt Base Force Midweight Crew 4.0 1 2 3 4 5 $35 ListCheck Price at Amazon Base Layers for Women Merino.tech 250 Crew 4.0 1 2 3 4 5 $60 ListCheck Price at Amazon Base Layers for Women Icebreaker Merino 200 Oasis Crewe 4.6 1 2 3 4 5 $105 ListCheck Price at Amazon Base Layers for Men Meriwool Merino 250 Long Sleeve 4.5 1 2 3 4 5 $60 ListCheck Price at Amazon Base Layers for Men Smartwool Intraknit Thermal Merino 4.5 1 2 3 4 5 $130 ListCheck REI (on sale!) Base Layers for Women Patagonia Capilene Thermal Weight Zip-Neck 4.5 1 2 3 4 5 $109 ListCheck Price at REI Base Layers for Men Black Diamond Solution 150 Merino Half Zip Hoody 4.8 1 2 3 4 5 $145 List Base Layers for Women Arc'teryx Rho Lightweight Zip Neck 4.8 1 2 3 4 5 $130 ListCheck REI (on sale!) Base Layers for Men SmartWool Merino 250 Crew 4.8 1 2 3 4 5 $115 ListCheck Price at Amazon Base Layers for Women Black Diamond Solution 150 Merino Quarter Zip 4.7 1 2 3 4 5 $145 List Base Layers for Men Patagonia Capilene Cool Merino Long Sleeve 4.5 1 2 3 4 5 $79 List Base Layers for Men Icebreaker 200 Oasis 4.5 1 2 3 4 5 $105 ListCheck Amazon (on sale!) Base Layers for Women Icebreaker Tech 260 4.2 1 2 3 4 5 $125 ListCheck Price at REI Base Layers for Men NW Alpine Spectra 4.8 1 2 3 4 5 $59 List Base Layers for Men Rab Merino+ 120 Crew 4.8 1 2 3 4 5 $85 List Base Layers for Men Icebreaker Sprint Crew 4.8 1 2 3 4 5 $100 List Base Layers for Women Patagonia Capilene Air Hoody 4.7 1 2 3 4 5 $159 List Base Layers for Men Cotopaxi Liso Top 4.5 1 2 3 4 5 $65 List Base Layers for Women Odlo Kinship Light Crew 4.5 1 2 3 4 5 $80 List Base Layers for Men Black Diamond Solution 150 Merino 4.5 1 2 3 4 5 $135 List Base Layers for Men Norrona Wool Round Neck 4.5 1 2 3 4 5 $109 List Base Layers for Men Arc'teryx Phase AR Crew LS 4.4 1 2 3 4 5 $79 List Base Layers for Men Norrona Equaliser 4.2 1 2 3 4 5 $80 List Base Layers for Women The North Face Warm Crew 4.2 1 2 3 4 5 $50 List Base Layers for Men REI Co-op Merino Midweight 4.0 1 2 3 4 5 $80 List Base Layers for Men The North Face Warm Crew 3.7 1 2 3 4 5 $50 List Base Layers for Women Ridge Merino Convict 4.8 1 2 3 4 5 $150 List Base Layers for Women Ridge Merino Aspect Midweight 4.5 1 2 3 4 5 $75 List Base Layers for Men Ridge Merino Inversion Crew 4.4 1 2 3 4 5 $100 List Base Layers for Women WoolX Hannah 4.2 1 2 3 4 5 $85 List Filter & Sort Apply Filter & Sort Sort By: Best Match Best Rating Most Recent Price (Low toHigh) Price (High to Low) Rating 1 2 3 4 5 & up 1 2 3 4 5 & up Award Editors' Choice Best Buy Top Pick Gender Men Women Deals On sale Brand Arc'teryx Black Diamond Carhartt Cotopaxi Icebreaker Merino.tech Meriwool Norrona NW Alpine Odlo Patagonia Rab REI Co-op Ridge Ridge Merino Smartwool The North Face WoolX Apply Filter & Sort