Baseball Gear & EquipmentBasketballBike Apparel & FootwearCamping ChairsCamping 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 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(447)
Uses item details. Price when purchased online
wirarpa Men's Lightweight Thermal Underwear Set, Cotton Warm Long Johns Base Layer for Cold Weather & Outdoor Black S-2XL From $26.99
Sponsored
From$2699
wirarpa Men's Lightweight Thermal Underwear Set, Cotton Warm Long Johns Base Layer for Cold Weather & Outdoor Black S-2XL
4.3 out of 5 stars
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
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)
Deal, Men's Thermal Shirt 2 Pcs Fleece Lined Long Sleeve Tops Athletic Base Layer Cold Weather Gear Workout From $17.59
Deal
Sponsored
From$1759
Men's Thermal Shirt 2 Pcs Fleece Lined Long Sleeve Tops Athletic Base Layer Cold Weather Gear Workout
4.6 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
4.5 out of 5 stars
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
4.9 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
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
Clearance, Wrangler Brushed Performance Baselayer Pants for Men, Recycled Polyester Thermal Underwear, M-2XL From $4.36
From$436
Wrangler Brushed Performance Baselayer Pants for Men, Recycled Polyester Thermal Underwear, M-2XL
4.6 out of 5 stars
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
Reduced price, CL convallaria Mens Thermal Underwear Set with Fly, Long Johns Base Layer Winter Hunting Gear Sport Top and Bottom XS-4XL From $19.79
Sponsored
From$1979
CL convallaria Mens Thermal Underwear Set with Fly, Long Johns Base Layer Winter Hunting Gear Sport Top and Bottom XS-4XL
4.6 out of 5 stars
4 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather From $19.54
Sponsored
From$1954
4 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather
4.5 out of 5 stars
Deal, HeroBiker Men's Winter Thermal Top and Bottom with Fleece Lined Plus Size Set From $13.46
Deal
From$1346
HeroBiker Men's Winter Thermal Top and Bottom with Fleece Lined Plus Size Set
4.5 out of 5 stars
Best seller, Xtreme Heat Mens Thermal Underwear Set Insulated Shirt & Long Johns, Grey Medium From $15.98
Best seller
From$1598
Xtreme Heat Mens Thermal Underwear Set Insulated Shirt & Long Johns, Grey Medium
4.5 out of 5 stars
In 25+ people's carts, Ozark Trail Women's Warmer Thermal Seamless Fleece Bottom, Sizes XS-XXL
In 25+ people's carts
Ozark Trail Women's Warmer Thermal Seamless Fleece Bottom, Sizes XS-XXL
4.6 out of 5 stars
Best seller, Realtree Men's Cotton Base Layer Thermal Pant, Black, XL From $14.97
Best seller
3 options
Available in additional 3 optionsFrom$1497
Realtree Men's Cotton Base Layer Thermal Pant, Black, XL
4.4 out of 5 stars
Fruit of the Loom Men's Slub Waffle Thermal Underwear Crew Top, Sizes S-5XL From $5.00
From$500
Fruit of the Loom Men's Slub Waffle Thermal Underwear Crew Top, Sizes S-5XL
4.6 out of 5 stars
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
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
4.4 out of 5 stars
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
BUYJYA 3 Pack Men's Athletic Shirts Workout Short Sleeve Cool Dry Base Layer Undershirt Running T-shirts,Size S-3XL From $21.59
Sponsored
From$2159
BUYJYA 3 Pack Men's Athletic Shirts Workout Short Sleeve Cool Dry Base Layer Undershirt Running T-shirts,Size S-3XL
4.4 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
Sponsored
From$4600
Woolcano Men's 100% Merino Wool Thermal Base Layer Bottoms, 190 GSM, Winter Long Johns for Hiking, Skiing & Outdoor Work
Best seller, Realtree Men's Heavyweight Fleece Base Layer Thermal Shirt, Black, M From $17.87
Best seller
3 options
Available in additional 3 optionsFrom$1787
Realtree Men's Heavyweight Fleece Base Layer Thermal Shirt, Black, M
4.6 out of 5 stars
Rocky Men’s Thermal Underwear Set Insulated Top & Bottom Base Layer For Cold Weather, Melange Charcoal Grey 6X From $17.99
From$1799
Rocky Men’s Thermal Underwear Set Insulated Top & Bottom Base Layer For Cold Weather, Melange Charcoal Grey 6X
4.5 out of 5 stars
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
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
4.4 out of 5 stars
2 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather From $19.54
From$1954
2 Pack Thermal Shirts for Men Long Sleeve Tops Undershirt Base Layer for Winter Cold Weather
4.5 out of 5 stars
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
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
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
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
4.9 out of 5 stars
NevEND Long Johns Microfiber Soft Fleece Lined Thermal Underwear for Men Crewneck Set Winter Warm Base Layer Top & Bottom Black (S - 2XL) From $19.99
Sponsored
From$1999
NevEND Long Johns Microfiber Soft Fleece Lined Thermal Underwear for Men Crewneck Set Winter Warm Base Layer Top & Bottom Black (S - 2XL)
4.6 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 $26.72
From$2672
2 Pack Thermal Underwear Long Johns for Men Fleece Lined Base Layer Tops and Bottoms Set Cold Weather Clothing Gear Winter Gift
4.4 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 $68.00
From$6800
Woolcano Men's 100% Merino Wool Thermal Base Layer Top, Long Sleeve Underwear Shirt for Hiking, Skiing and Winter Outdoor Activities
Annhoo Womens Long Sleeve Thermal Shirts Fall Winter V Neck Fleece Base Layer Tops Plus Size Basic Warm Undershirts From $7.99
From$799
Annhoo Womens Long Sleeve Thermal Shirts Fall Winter V Neck Fleece Base Layer Tops Plus Size Basic Warm Undershirts
2.8 out of 5 stars
Deal, GIRUNS Mens Thermal Long Sleeve T Shirt Basic Crew Neck Undershirt Stretch Base Layer Top Black L From $12.34
Deal
From$1234
GIRUNS Mens Thermal Long Sleeve T Shirt Basic Crew Neck Undershirt Stretch Base Layer Top Black L
4.9 out of 5 stars
Deal, Men's Thermal Shirt 2 Pcs Fleece Lined Long Sleeve Tops Athletic Base Layer Cold Weather Gear Workout From $17.59
Deal
From$1759
Men's Thermal Shirt 2 Pcs Fleece Lined Long Sleeve Tops Athletic Base Layer Cold Weather Gear Workout
4.6 out of 5 stars
Fruit of the Loom Men's Thermal Waffle Underwear Bottom, Sizes S-5XL From $9.98
From$998
Fruit of the Loom Men's Thermal Waffle Underwear Bottom, Sizes S-5XL
4.4 out of 5 stars
Fruit of the Loom Men's Thermal Waffle Crew Top, Sizes S-5XL From $9.98
From$998
Fruit of the Loom Men's Thermal Waffle Crew Top, Sizes S-5XL
4.3 out of 5 stars
Umfun Thermal Base Layer Pants for Men Winter Warm Ultra Soft Long Johns Leggings Pull-On Trousers for Cold Weather Underwear Outdoor Sports From $13.14
From$1314
Umfun Thermal Base Layer Pants for Men Winter Warm Ultra Soft Long Johns Leggings Pull-On Trousers for Cold Weather Underwear Outdoor Sports
4.3 out of 5 stars
Reebok Men's Long Sleeve Base Layer Top From $13.97
5 options
Available in additional 5 optionsFrom$1397
Reebok Men's Long Sleeve Base Layer Top
4.6 out of 5 stars
4 Pack: Men's Compression Long-Sleeve T-Shirt Athletic Cold Weather BaseLayer (Available In Big & Tall)
4 Pack: Men's Compression Long-Sleeve T-Shirt Athletic Cold Weather BaseLayer (Available In Big & Tall)
3.9 out of 5 stars
Fruit of the Loom Men's Thermal Waffle Crew Top, 2-Pack, Sizes S-5XL From $7.45
From$745
Fruit of the Loom Men's Thermal Waffle Crew Top, 2-Pack, Sizes S-5XL
4.3 out of 5 stars
Realtree Men's Waffle Grid Fleece Base Layer Thermal Bottom, Black, L
3 options
Available in additional 3 optionsRealtree Men's Waffle Grid Fleece Base Layer Thermal Bottom, Black, L
4.8 out of 5 stars
BUYJYA 3 Pack Men's Athletic Shirts Workout Short Sleeve Cool Dry Base Layer Undershirt Running T-shirts,Size S-3XL
BUYJYA 3 Pack Men's Athletic Shirts Workout Short Sleeve Cool Dry Base Layer Undershirt Running T-shirts,Size S-3XL
4.4 out of 5 stars
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
5 out of 5 stars
Deal, TELALEO 3 Pack Men Athletic Base Layer Dry Fit Long Sleeve Workout Running Shirts From $19.99
Deal
5 options
Available in additional 5 optionsFrom$1999
TELALEO 3 Pack Men Athletic Base Layer Dry Fit Long Sleeve Workout Running Shirts
4.3 out of 5 stars
POLAR HEAT NANUUQ MENS THERMAL BASE LAYER TOP XL From $6.74
3 options
Available in additional 3 optionsFrom$674
POLAR HEAT NANUUQ MENS THERMAL BASE LAYER TOP XL
4.7 out of 5 stars
Merino.tech Men's Long Underwear Pants - 𝗧𝗵𝗲𝗿𝗺𝗮𝗹 Merino Wool Bottoms & Merino Sox Included, Charcoal Grey - 2XL From $49.99
From$4999
Merino.tech Men's Long Underwear Pants - 𝗧𝗵𝗲𝗿𝗺𝗮𝗹 Merino Wool Bottoms & Merino Sox Included, Charcoal Grey - 2XL
5 out of 5 stars
Popular in Hiking Base Layer
Related Products
Indera 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$14.98current price $14.98Indera Men's Cotton Waffle Knit Heavyweight Thermal Underwear Pant, Black, 2X
Indera Men's Cotton Waffle Knit Heavyweight Thermal Underwear Pant, Black, 2X$19.99current price $19.99LIBRCLO Thermal Underwear for Men Fleece Base Layer Long Johns Underwear Long Sleeve High Elasticity Crew Neck Warm Top and Bottom Sets Winter
LIBRCLO Thermal Underwear for Men Fleece Base Layer Long Johns Underwear Long Sleeve High Elasticity Crew Neck Warm Top and Bottom Sets Winter$9.99current price $9.99Men's Traditional Long Johns Shirt Cotton Polyester Thermals 3XL Natural
Men's Traditional Long Johns Shirt Cotton Polyester Thermals 3XL Natural$14.94current price $14.94BROOKLYN 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$26.99current price $26.99Heavyweight 100% Cotton Knit Thermal Long Underwear Bottoms, Medium
Heavyweight 100% Cotton Knit Thermal Long Underwear Bottoms, Medium$14.99current price $14.99Indera Men's Traditional Long Johns Thermal Underwear Pant, Navy, XX-Large
Indera Men's Traditional Long Johns Thermal Underwear Pant, Navy, XX-Large$14.99current price $14.99MINTREUS Thermal Underwear for Men Long Johns with Fleece Lined, Base Layer Men Cold Weather Top Bottom
MINTREUS Thermal Underwear for Men Long Johns with Fleece Lined, Base Layer Men Cold Weather Top Bottom$18.79current price $18.79Mens Thermal Underwear Set, iMounTEK Fleece Long Johns Top Bottom for Men Cold Winter, Black XL
Mens Thermal Underwear Set, iMounTEK Fleece Long Johns Top Bottom for Men Cold Winter, Black XL$20.54current price $20.54JIUKE Mens Thermal Underwear 2 Piece Solid Color Long Johns Set Fleece Lined Base Layer Winter Warm Top Bottom
JIUKE Mens Thermal Underwear 2 Piece Solid Color Long Johns Set Fleece Lined Base Layer Winter Warm Top Bottom$9.59current price $9.59Indera Men's S Traditional Waffle Base Layer Bottom, Black
Indera Men's S Traditional Waffle Base Layer Bottom, Black$14.99current price $14.99Lalamelon Men's Thermal Underwear Sets Top & Long Johns Breathable Quick Drying Thermo Base Layer
Lalamelon Men's Thermal Underwear Sets Top & Long Johns Breathable Quick Drying Thermo Base Layer$19.99current price $19.99Thermal 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$13.66current price $13.66