Baseball Gear & EquipmentBasketballBike Apparel & FootwearCamping ChairsCamping ClearanceCamping GearCamping TablesCloggingCoolersDecathlon Winter SportsExercise & Fitness AccessoriesExercise MachinesFishingFitness ClearanceFootball Gear & EquipmentFor the Home Fan ShopFunctional TrainingGolf EquipmentGymnasticsHockeyHuntingHunting ClearanceMartial ArtsNCAA Fan ShopNFL Fan ShopOutdoor & Camping DrinkwarePaddlingPilatesSelf Defense ToolsSnowsportsSoccer Gear and EquipmentSoftball Gear & EquipmentSporting Goods ClearanceSports & Duffel BagsSports & Outdoor Play Fan ShopSports Clothing & ShoesSports Fan Shop Face CoveringsSports Fan Shop SavingsSports Fan Tailgating GearSports Recovery, Injury PreventionStrength TrainingSunny Health & FitnessTailgating by Team ColorTekariTennis & RacquetsThe Eddie Bauer ShopThe Mossy Oak ShopTreadmillsUnder Desk Exercise EquipmentVolleyball EquipmentWater SportsWearable TechnologyWinter SportsYoga
Sort by|
Baseball Gear & EquipmentBasketballBike Apparel & FootwearCamping ChairsCamping ClearanceCamping GearCamping TablesCloggingCoolersDecathlon Winter SportsExercise & Fitness AccessoriesExercise MachinesFishingFitness ClearanceFootball Gear & EquipmentFor the Home Fan ShopFunctional TrainingGolf EquipmentGymnasticsHockeyHuntingHunting ClearanceMartial ArtsNCAA Fan ShopNFL Fan ShopOutdoor & Camping DrinkwarePaddlingPilatesSelf Defense ToolsSnowsportsSoccer Gear and EquipmentSoftball Gear & EquipmentSporting Goods ClearanceSports & Duffel BagsSports & Outdoor Play Fan ShopSports Clothing & ShoesSports Fan Shop Face CoveringsSports Fan Shop SavingsSports Fan Tailgating GearSports Recovery, Injury PreventionStrength TrainingSunny Health & FitnessTailgating by Team ColorTekariTennis & RacquetsThe Eddie Bauer ShopThe Mossy Oak ShopTreadmillsUnder Desk Exercise EquipmentVolleyball EquipmentWater SportsWearable TechnologyWinter SportsYoga
Hiking Base Layer(445)
Uses item details. Price when purchased online
Woolcano Men's 100% Merino Wool Base Layer Set, Thermal Top and Bottoms for Skiing, Hiking, Winter Work and Cold Weather Activities From $76.00
Sponsored
From$7600
Woolcano Men's 100% Merino Wool Base Layer Set, Thermal Top and Bottoms for Skiing, Hiking, Winter Work and Cold Weather Activities
4.6 out of 5 stars
Reduced price, Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift From $19.54
Sponsored
From$1954
Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift
4.7 out of 5 stars
MAYFISH Men's Cotton Thermal Underwear Union Suits Henley Onesies Base Layer (Red, S) From $39.99
Sponsored
From$3999
MAYFISH Men's Cotton Thermal Underwear Union Suits Henley Onesies Base Layer (Red, S)
Best seller, 4 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather From $19.54
Best seller
Sponsored
From$1954
4 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather
Mossy Oak Men's Base Layer Set, Thermal Top & Bottom for Hunting, Obsession Camo, Sizes S-XXL
Mossy Oak Men's Base Layer Set, Thermal Top & Bottom for Hunting, Obsession Camo, Sizes S-XXL
Best seller, Realtree Men's Heavyweight Fleece Base Layer Thermal Shirt, Black, M From $17.49
Best seller
3 options
Available in additional 3 optionsFrom$1749
Realtree Men's Heavyweight Fleece Base Layer Thermal Shirt, Black, M
Clearance, POLAR HEAT NANUUQ MENS THERMAL BASE LAYER TOP XL From $6.54
3 options
Available in additional 3 optionsFrom$654
POLAR HEAT NANUUQ MENS THERMAL BASE LAYER TOP XL
4.7 out of 5 stars
Clearance, Realtree Grand Canyon Baselayers for Men, Recycled Cotton Blend Thermal Top and Pant Set, 2-Piece From $8.56
4 options
Available in additional 4 optionsFrom$856
Realtree Grand Canyon Baselayers for Men, Recycled Cotton Blend Thermal Top and Pant Set, 2-Piece
Realtree Men's Moisture Wicking Thermals, Mens Bottoms, Long Underwear, Camouflage, Medium
Realtree Men's Moisture Wicking Thermals, Mens Bottoms, Long Underwear, Camouflage, Medium
In 25+ people's carts, Ozark Trail Women’s Warmer Thermal Long Sleeve Seamless Fleece Top, Sizes XS-XXL
In 25+ people's carts
Ozark Trail Women’s Warmer Thermal Long Sleeve Seamless Fleece Top, Sizes XS-XXL
Alpinario Men's Fleece-Lined Compression Pants Warm Thermal Tights for Cold Weather Running, Black, 2XL From $6.99
Sponsored
From$699
Alpinario Men's Fleece-Lined Compression Pants Warm Thermal Tights for Cold Weather Running, Black, 2XL
5 out of 5 stars
Thermal Underwear for Men Long Johns with Fleece Lined Base Layer Men Cold Weather Top Bottom From $19.54
Sponsored
From$1954
Thermal Underwear for Men Long Johns with Fleece Lined Base Layer Men Cold Weather Top Bottom
Best seller, Realtree Men's Cotton Base Layer Thermal Shirt, Black, XL From $14.97
Best seller
3 options
Available in additional 3 optionsFrom$1497
Realtree Men's Cotton Base Layer Thermal Shirt, Black, XL
4.6 out of 5 stars
Reebok Men’s Sport Soft Plus Long Sleeve Base Layer Top, Stretch Performance Jersey with Moisture Wicking, 1 Pack, Sizes S - 2XL
Reebok Men’s Sport Soft Plus Long Sleeve Base Layer Top, Stretch Performance Jersey with Moisture Wicking, 1 Pack, Sizes S - 2XL
Ozark Trail Women's Warmest Thermal Fleece Bottom, Sizes XS-XXL
Ozark Trail Women's Warmest Thermal Fleece Bottom, Sizes XS-XXL
5 out of 5 stars
Ozark Trail Women's Warmer Thermal Seamless Fleece Bottom, Sizes XS-XXL
Ozark Trail Women's Warmer Thermal Seamless Fleece Bottom, Sizes XS-XXL
Best seller, HeroBiker Men's Winter Thermal Top and Bottom with Fleece Lined Plus Size Set From $13.46
Best seller
From$1346
HeroBiker Men's Winter Thermal Top and Bottom with Fleece Lined Plus Size Set
Reebok Men’s Sport Soft Plus Base Layer Pant, Stretch Performance Jersey with Moisture Wicking, 1 Pack, Sizes S - 2XL
Reebok Men’s Sport Soft Plus Base Layer Pant, Stretch Performance Jersey with Moisture Wicking, 1 Pack, Sizes S - 2XL
5 out of 5 stars
2 Pack Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift From $32.99
Sponsored
From$3299
2 Pack Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift
Mobile Warming Primer Heated Base Layer Shirt for Men, 3 Heat Zones, Midweight Thermal Crew Neck with In-Seam Thumbholes, Black From $159.99
Sponsored
From$15999
Mobile Warming Primer Heated Base Layer Shirt for Men, 3 Heat Zones, Midweight Thermal Crew Neck with In-Seam Thumbholes, Black
4.8 out of 5 stars
Best seller, Realtree Men's Heavyweight Fleece Base Layer Thermal Pants, size M-XL From $14.97
Best seller
3 options
Available in additional 3 optionsFrom$1497
Realtree Men's Heavyweight Fleece Base Layer Thermal Pants, size M-XL
Woolcano Men's 100% Merino Wool Base Layer Set, Thermal Top and Bottoms for Skiing, Hiking, Winter Work and Cold Weather Activities From $76.00
From$7600
Woolcano Men's 100% Merino Wool Base Layer Set, Thermal Top and Bottoms for Skiing, Hiking, Winter Work and Cold Weather Activities
4.6 out of 5 stars
Woolcano Men's 100% Merino Wool Thermal Base Layer Top, Long Sleeve Underwear Shirt for Hiking, Skiing and Winter Outdoor Activities From $51.00
From$5100
Woolcano Men's 100% Merino Wool Thermal Base Layer Top, Long Sleeve Underwear Shirt for Hiking, Skiing and Winter Outdoor Activities
BROOKLYN VERTICAL Boys 2-Pack Thermal Waffle Active Base Layer Sets| Long Sleeve Shirt and Pants From $17.99
From$1799
BROOKLYN VERTICAL Boys 2-Pack Thermal Waffle Active Base Layer Sets| Long Sleeve Shirt and Pants
4.3 out of 5 stars
Rocky Men’s Thermal Underwear Set Insulated Top & Bottom Base Layer For Cold Weather, Black Medium From $17.99
From$1799
Rocky Men’s Thermal Underwear Set Insulated Top & Bottom Base Layer For Cold Weather, Black Medium
Miqool Thermal Base Layer for Men 2 Piece Set Long Sleeve Top Leggings Compression Running Fitness Winter Warm XS‑XL From $9.99
From$999
Miqool Thermal Base Layer for Men 2 Piece Set Long Sleeve Top Leggings Compression Running Fitness Winter Warm XS‑XL
Reebok Men's Underwear Base Layer Pant From $12.95
5 options
Available in additional 5 optionsFrom$1295
Reebok Men's Underwear Base Layer Pant
Ozark Trail Women's Warmest Thermal Long Sleeve Fleece Mockneck Top, Sizes XS-XXL
Ozark Trail Women's Warmest Thermal Long Sleeve Fleece Mockneck Top, Sizes XS-XXL
3.5 out of 5 stars
4 Pack Mens Long Johns Thermal Underwear Pants Fleece Lined Warm Base Legging Layer Bottoms Cold Weather Gear From $19.54
Sponsored
From$1954
4 Pack Mens Long Johns Thermal Underwear Pants Fleece Lined Warm Base Legging Layer Bottoms Cold Weather Gear
Woolcano Men's 100% Merino Wool Thermal Base Layer Bottoms, 190 GSM, Winter Long Johns for Hiking, Skiing & Outdoor Work From $46.00
Sponsored
From$4600
Woolcano Men's 100% Merino Wool Thermal Base Layer Bottoms, 190 GSM, Winter Long Johns for Hiking, Skiing & Outdoor Work
XINPING Men's Thermal Underwear Lined Set, 4 Way Stretch Moisture Wicking Long Johns, Quick Dry Base Layer Top Bottom for Running Cycling Outdoor Sports From $11.69
From$1169
XINPING Men's Thermal Underwear Lined Set, 4 Way Stretch Moisture Wicking Long Johns, Quick Dry Base Layer Top Bottom for Running Cycling Outdoor Sports
Place & Street Thermals Thermal Sets Moisture Wicking Solid Long Underwear (Men's) 2 Pieces From $17.88
From$1788
Place & Street Thermals Thermal Sets Moisture Wicking Solid Long Underwear (Men's) 2 Pieces
4 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather From $19.54
From$1954
4 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather
Realtree Men's Moisture Wicking Thermals, Thermal Baselayer Shirts for Men, Camouflage, Medium
Realtree Men's Moisture Wicking Thermals, Thermal Baselayer Shirts for Men, Camouflage, Medium
5 out of 5 stars
Woolcano Men's 100% Merino Wool Thermal Base Layer Bottoms, 190 GSM, Winter Long Johns for Hiking, Skiing & Outdoor Work From $46.00
From$4600
Woolcano Men's 100% Merino Wool Thermal Base Layer Bottoms, 190 GSM, Winter Long Johns for Hiking, Skiing & Outdoor Work
Realtree Men's Waffle Grid Fleece Base Layer Thermal Top, Black, XL
3 options
Available in additional 3 optionsRealtree Men's Waffle Grid Fleece Base Layer Thermal Top, Black, XL
4.8 out of 5 stars
ClimateRight by Cuddl Duds Women's Warm Plush Warmth Mock Neck Base Layer Thermal Top, Sizes XS to 4X From $12.96
From$1296
ClimateRight by Cuddl Duds Women's Warm Plush Warmth Mock Neck Base Layer Thermal Top, Sizes XS to 4X
4.7 out of 5 stars
Clearance Men's Thermal Compression Shirts Long Sleeve Mock Neck Shirt Winter Sports Running Lightweight Base Layer
Clearance Men's Thermal Compression Shirts Long Sleeve Mock Neck Shirt Winter Sports Running Lightweight Base Layer
3 out of 5 stars
Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift From $19.54
From$1954
Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift
Thermal Underwear Long Johns for Men Cold Weather Bottom Top 4 way stretch Base Layer Warm Winter Sport Gear Daily Wear From $5.53
From$553
Thermal Underwear Long Johns for Men Cold Weather Bottom Top 4 way stretch Base Layer Warm Winter Sport Gear Daily Wear
XINPING Cold Weather Thermal Underwear for Men, Lined Long Johns Base Layer Set, Moisture Wicking Quick Dry 4 Way Stretch Top Bottom for Winter Skiing and Running From $12.59
From$1259
XINPING Cold Weather Thermal Underwear for Men, Lined Long Johns Base Layer Set, Moisture Wicking Quick Dry 4 Way Stretch Top Bottom for Winter Skiing and Running
2 Pack Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift From $32.99
From$3299
2 Pack Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift
Wrangler Brushed Performance Baselayer Pants for Men, Recycled Polyester Thermal Underwear, M-2XL From $4.40
From$440
Wrangler Brushed Performance Baselayer Pants for Men, Recycled Polyester Thermal Underwear, M-2XL
Thermal Underwear for Men Long Johns with Fleece Lined Base Layer Men Cold Weather Top Bottom From $19.54
From$1954
Thermal Underwear for Men Long Johns with Fleece Lined Base Layer Men Cold Weather Top Bottom
Woolcano Women's 100% Merino Wool Thermal Base Layer Top,Long Sleeve Underwear Shirt for Skiing,Hiking and Cold Weather From $47.99
From$4799
Woolcano Women's 100% Merino Wool Thermal Base Layer Top,Long Sleeve Underwear Shirt for Skiing,Hiking and Cold Weather
TELALEO 2 Pack Boys Fleece Lined Thermal Compression Leggings, Youth Cold Weather Base Layer Athletic Pants，Size L
5 options
Available in additional 5 optionsTELALEO 2 Pack Boys Fleece Lined Thermal Compression Leggings, Youth Cold Weather Base Layer Athletic Pants，Size L
Realtree Men's Cotton Base Layer Thermal Pant, Black, M From $14.97
3 options
Available in additional 3 optionsFrom$1497
Realtree Men's Cotton Base Layer Thermal Pant, Black, M
4.4 out of 5 stars
Other options to consider(14)
Popular in Hiking Base Layer
Related Products
Indera Men's Traditional Waffle Thermal Underwear Long Johns Crew Top and Pant Set, Natural, Large
Indera Men's Traditional Waffle Thermal Underwear Long Johns Crew Top and Pant Set, Natural, Large$18.89current price $18.89Heavyweight 100% Cotton Knit Thermal Long Underwear Bottoms, Medium
Heavyweight 100% Cotton Knit Thermal Long Underwear Bottoms, Medium$14.99current price $14.99Thermal Underwear for Men Long Johns Underwear Fleece Lined Thermals Top and Bottom Set Winter Warm Base Layer Long Sleeve Shirts and Pants Skiing Leggings Cold Weather Black M
Thermal Underwear for Men Long Johns Underwear Fleece Lined Thermals Top and Bottom Set Winter Warm Base Layer Long Sleeve Shirts and Pants Skiing Leggings Cold Weather Black M$15.98current price $15.98BROOKLYN VERTICAL Mens 2-Piece Waffle Thermals Set | Long Sleeve Shirt, Pants | Long Johns Waffle Thermal Underwear Base Layer Set for Cold Weather
BROOKLYN VERTICAL Mens 2-Piece Waffle Thermals Set | Long Sleeve Shirt, Pants | Long Johns Waffle Thermal Underwear Base Layer Set for Cold Weather$17.54current price $17.54SLM Men's 100% Cotton Long Johns Thermal Underwear Set Waffle Insulated Base Layer
SLM Men's 100% Cotton Long Johns Thermal Underwear Set Waffle Insulated Base Layer
Long Johns Crewneck Thermal Underwear Set for Men Fleece Lined Winter Warm Base Layer Top & Bottom Black L
Long Johns Crewneck Thermal Underwear Set for Men Fleece Lined Winter Warm Base Layer Top & Bottom Black L$18.99current price $18.99Duofold Men's Mid Weight Wicking Thermal Pant, Black, Small
Duofold Men's Mid Weight Wicking Thermal Pant, Black, Small$15.99current price $15.99Indera Men's Tall Traditional Long Johns Thermal Underwear Pant 3X Natural
Indera Men's Tall Traditional Long Johns Thermal Underwear Pant 3X Natural$14.99current price $14.99ANYFIT WEAR Long Johns Thermal Underwear for Men Base Layer Set Top & Bottom for Cold Weather
ANYFIT WEAR Long Johns Thermal Underwear for Men Base Layer Set Top & Bottom for Cold Weather$17.98current price $17.98YUSHOW Mens Thermals Underwear Set Thin Wicking Base Layer Crew Neck Long Johns,Size XL
YUSHOW Mens Thermals Underwear Set Thin Wicking Base Layer Crew Neck Long Johns,Size XL$27.99current price $27.99Indera Men's Cotton Waffle Knit Heavyweight Thermal Underwear Pant, Black, 2X
Indera Men's Cotton Waffle Knit Heavyweight Thermal Underwear Pant, Black, 2X$21.43current price $21.43Men's Traditional Long Johns Shirt Cotton Polyester Thermals 3XL Natural
Men's Traditional Long Johns Shirt Cotton Polyester Thermals 3XL Natural$15.95current price $15.95Abomasnow Thermal Underwear for Men Long Johns Set Lightweight Fleece Lined Base Layer for Cold Weather Winter Clothes M-3XL
Abomasnow Thermal Underwear for Men Long Johns Set Lightweight Fleece Lined Base Layer for Cold Weather Winter Clothes M-3XL$8.99current price $8.99