130,000+ results for base layer
- Castelli CORE MESH 3 Sleeveless Base Layer : BLACKOpens in a new window or tabBrand New$54.95Free shipping8+ watchers
- 100% Merino Wool UT Thermo Active Men SOFT High Neck Shirt Base Layer 2503 NEWOpens in a new window or tabBrand New$58.93Free shippingfrom LithuaniaFree returns
- Men BIG & TALL Fleeced Lined Base Layer Activewear Thermal Top Long SleeveOpens in a new window or tabBrand New$14.99 to $17.99Free shipping
- NWT Turtleson Wallace 1/4 Zip Long Sleeve Pullover Base Layer in SkyOpens in a new window or tabBrand New$20.00+$5.80 shipping
- ICEBREAKER 200 Men's Black Merino Wool Crewneck Base Layer Top - Size 2XLOpens in a new window or tabPre-Owned$20.000 bids · Time left4d 21h+$6.99 shippingFree returnsTop Rated Plus
- Men Turtleneck Compression Base Layer Top Gym Tights Athletic Long Sleeve Shirt‹Opens in a new window or tabBrand New$4.98 to $12.07Was: $12.846% offFree shippingfrom China
- Man's Compression Base Layer Workout Shirt Top Legging Running Training GYMOpens in a new window or tabBrand New$12.99 to $24.99Free shippingFree returnsTop Rated Plus
- Women's 32 Degrees Heat Base Layer Long Sleeve Scoop Neck - B43Opens in a new window or tabNew (Other)$9.95Free shippingFree returnsExtra 10% off with couponTop Rated Plus
Picked For You
Sponsored | Top selling items from highly rated sellers with free shipping- NEW MILITARY SILK WEIGHT BASE LAYER SHIRT LEVEL 1 TOP SAND/TAN MOISTURE WICKINGOpens in a new window or tabBrand New$18.95Free shippingFree returns1+ watchersTop Rated Plus
- 3pk SOFFE Base Layer, MILITARY Tan Shirt 3-Pack Crew Neck T-Shirts Men's XLargeOpens in a new window or tabBrand New$22.00Free shipping17 watchers
- Patagonia Capilene Base Layer Thermal Weight Shirt Black Men’s XL #983Opens in a new window or tabPre-Owned$29.99+$6.95 shipping
- NEW Mens Compression Long Trousers Pants Base Layer Running Tights BlackOpens in a new window or tabBrand New$20.99Free shippingSave up to 20% when you buy more
- 100% Merino Wool UT Thermo Active Men SOFT Bottom Pants Base Layer 2656 NEWOpens in a new window or tabBrand New$56.40Free shippingfrom LithuaniaFree returns6+ watchers
- 100% Merino Wool JBS Olympia Men Leggings Base Layer Oly2 NEWOpens in a new window or tabBrand New$52.90Free shippingfrom LithuaniaFree returns97+ sold
- Omni Wool Men Base Layer Thermal Merino Wool Quick Dry Top or Bottom S M XXLOpens in a new window or tabBrand New$25.99+$6.49 shippingSave up to 30% when you buy more
- Smartwool Merino 250 Base Layer Mens Medium Gray Pattern Crew Striped 100% WoolOpens in a new window or tabPre-Owned$24.99+$7.00 shippingFree returns
- 32 Degrees Heat Women's Long Sleeve Scoop Neck Base Layer Top BlackOpens in a new window or tabBrand New$12.59Was: $13.9910% offFree 4 day shipping5+ watchers
- USED MILITARY SILK WEIGHT BASE LAYER SHIRT LEVEL 1 TOP SAND/TAN MOISTURE WICKINGOpens in a new window or tabPre-Owned$9.95Free shippingFree returnsTop Rated Plus
- Patagonia Mens Sz L Shirt S/S Capilene Cool Ltwt Base Layer Outdoor Teal GreenOpens in a new window or tabPre-Owned$21.97+$4.99 shipping
- 32 Degrees Heat Men's Weatherproof Long Sleeve Base Layer Crewneck Shirt - B41Opens in a new window or tabNew (Other)$10.95Free shippingFree returnsExtra 10% off with couponTop Rated Plus
- Columbia Performance Omni-Wick Midweight Baselayer Crew Long Sleeve Mens XLOpens in a new window or tabPre-Owned$12.50+$5.93 shipping
- Men's Long Sleeve Quick Dry Compression Shirt Gym Tops Under Base Layer Tight USOpens in a new window or tabBrand New$13.29 to $14.24Was: $14.995% offFree shippingSave up to 20% when you buy more
- Smartwool Shirt Mens S Black Classic Thermal Merino Base Layer 1/4 Zip PulloverOpens in a new window or tabPre-Owned$34.77+$5.97 shippingFree returnsTop Rated Plus
- Under Armour Coldgear Pullover Fitted Crewneck black size S fleece Base layerOpens in a new window or tabPre-Owned$14.00Was: $20.0030% offFree shippingFree returnsTop Rated Plus
- Men's 100% Merino Wool Shirts Midweight Thermal Warm Base Layer Zip Neck Ski TopOpens in a new window or tabBrand New$33.59 to $42.89Was: $65.9949% offFree shippingFree returns14+ watchersTop Rated Plus
- Nike ACG Base Layer Mens XL DriFit Made in USA Vtg Blue Gray Long Sleeve SwooshOpens in a new window or tabPre-Owned$29.95+$8.60 shipping
- 2pc Thermal Sets for Men, Base Layer Long Johns Underwear, Top & Bottom, CottonOpens in a new window or tabBrand New$144.00 to $288.00Free shipping
- Thermal Sets for Woman, Base Layer Long Johns Underwear, Top & Bottom , ottonOpens in a new window or tabBrand New$163.80 to $321.36Free shipping
- 3 Pack of 2pc Thermal Sets for Men, Base Layer Long Johns Underwear,Top & BottomOpens in a new window or tabBrand New$54.00 to $57.00Free shipping
- 2 Piece Men Thermal Sets, Base Layer Long Johns Underwear, Top & Bottom, CottonOpens in a new window or tabBrand New$21.99Free shippingFree returns
- Men Compression Sport Vest Tight Tank Base Layer Sleeveless T-Shirt Top SingletOpens in a new window or tabNew (Other)$9.99Free shippingfrom China
- Patagonia Mens Capilene Performance Base Layer Long Sleeve Black Size Large USAOpens in a new window or tabPre-Owned$20.00+$5.02 shippingFree returnsTop Rated Plus
- REI Co-Op Men's Midweight Base Layer Half-Zip Top Green Size MediumOpens in a new window or tabPre-Owned$28.00+$6.75 shipping
- Patagonia Men's Medium Orange Lightweight Long Sleeve Base Layer Crew Neck ShirtOpens in a new window or tabPre-Owned$22.00+$5.99 shipping
- REI Polartec Black Lightweight Long Sleeve Base Layer Top Shirt Men’s Medium USAOpens in a new window or tabPre-Owned$18.95+$6.95 shippingFree returnsTop Rated Plus
- Helly Hansen Shirt Mens Medium Navy Blue Long Sleeve Baselayer Breathable VentOpens in a new window or tabPre-Owned$19.00+$5.80 shipping
- MRX Mens Compression Set Tights & Shirts Base Layer Thermal Training Cycling GymOpens in a new window or tabBrand New$25.99Free shippingFree returnsSave up to 10% when you buy moreTop Rated Plus
- MRX Mens Compression suit set Pants & Shirts Base Layer Thermal Training WorkoutOpens in a new window or tabBrand New$25.99Free shippingFree returnsSave up to 10% when you buy moreTop Rated Plus
- Mens Long Sleeve T-Shirt Base Layer Moisture Wicking Workout Dri-Fit XS-4XL NEWOpens in a new window or tabNew (Other)$9.72 to $19.74Free shippingSave up to 5% when you buy more
- Patagonia Midweight Capilene Baselayer Mens Small Grey Polartec HikingOpens in a new window or tabPre-Owned$34.00+$9.80 shipping
- Men Compression Shirt Sleeveless Body Shaper Base Layer Slimming Tank Top VestOpens in a new window or tabBrand New$9.79 to $17.79Free shippingFree returnsSave up to 20% when you buy moreTop Rated Plus
- Patagonia Capilene 3 Midweight Crew base layer XXL Navy Blue EUC $78 MSRPOpens in a new window or tabPre-Owned$18.00Was: $36.0050% off+$8.00 shipping
- Woolpower Ullfrotté Original 200 Merino Wool Zip Turtleneck Base Layer Size XLOpens in a new window or tabPre-Owned$89.99+$6.64 shippingLast one
- Mens Reebok Black Base Layer Long Sleeve crew shirt Size: S, M, or LargeOpens in a new window or tabBrand New$11.99Free shipping
- Mens Dri-Duke Moisture Control ThermaForm Baselayer Shirt Size LARGE Long SleeveOpens in a new window or tabPre-Owned$30.00+$10.60 shipping
- Men One Leg Compression 3/4 Capri Tights Pants Basketball Activewear Base LayerOpens in a new window or tabBrand New$10.69 to $12.69Free shipping
- Adidas Climalite Men's Shirt L Black Gray Base Layer Long Sleeve Athletic TopOpens in a new window or tabPre-Owned$17.99+$4.99 shipping
- smartwool long sleeve base layer mens XL 100% Merino Wool Black Crew neckOpens in a new window or tabPre-Owned$29.99+$6.99 shippingFree returnsTop Rated Plus
- ARMEDES Mens Short Sleeve T-Shirt Cool Dry Compression Baselayer AR 51Opens in a new window or tabBrand New$13.99Free shippingFree returnsSave up to 10% when you buy moreTop Rated Plus
- Guide Gear 100% Pure Filament Silk Long Sleeve Base Layer Shirt Size L UnisexOpens in a new window or tabPre-Owned$24.99+$5.90 shipping
- Gold Medal Mens Black Thermal Long Sleeve Base Layer Pullover Size MediumOpens in a new window or tabPre-Owned$15.19+$4.25 shippingFree returnsTop Rated Plus
- PADDED SHIRT Base Layer Protecting Chest Shoulder Collarbone - BLEMISHED SHIRTSOpens in a new window or tabBrand New$19.99+$6.09 shipping
- Armada Skis Waffle Fleece Shirt Mens XL Gray Polartec Performance Base LayerOpens in a new window or tabPre-Owned$29.95+$6.99 shippingFree returnsExtra 20% off with coupon
- Patagonia Men's Large Capilene Baselayer Short Sleeve Polyester L BlackOpens in a new window or tabPre-Owned$21.88+$6.99 shippingFree returnsTop Rated Plus
- Men Long Sleeve Compression Shirt Base Layer Gym Thermal Tights Tops ActivewearOpens in a new window or tabBrand New$13.25 to $14.90Free shipping
- 5.11 Ranger Green Stratos 1/4 Zip Mid Layer Top Mens Size 2xl XXL Base LayerOpens in a new window or tabPre-Owned$35.00+$8.70 shipping
- Mens COOVY Sports Cool Dry-Fit Gear Base Layer Athletic Shirt Tights Short PantsOpens in a new window or tabBrand New$11.99 to $12.99Free shippingSave up to 15% when you buy more
- Spyder Micro Grid, Long Sleeve Crew Neck Pullover Baselayer, Men's LargeOpens in a new window or tabPre-Owned$17.83+$8.70 shippingFree returnsTop Rated Plus
- UNITED Military Thermal Base Layer Activewear Shirt in Men's L made in USAOpens in a new window or tabPre-Owned$9.00Was: $10.0010% off+$5.85 shippingFree returnsTop Rated Plus
- 32 Degrees Heat Women 2pk Long Sleeve Scoop Neck Base Layer Top White Gray BlackOpens in a new window or tabBrand New$18.95Free 2-4 day shipping
- REI Co-Op Quarter Zip Pullover Mens Medium Gray Base Layer Lightweight PolyesterOpens in a new window or tabPre-Owned$19.04+$5.95 shippingFree returnsTop Rated Plus
- Reebok #11178 NEW Women's Black Long Sleeve Base Layer Crew TopOpens in a new window or tabBrand New$7.99+$7.99 shippingFree returnsTop Rated Plus
- 32 Degrees Women's Sz XL Cozy Heat Long Sleeve Scoop Neck Base Layer Top NavyOpens in a new window or tabBrand New$9.99+$4.99 shipping
- NEW Oobe Base Layer Shirt Unisex Size Small Hydrovent Crew Neck Navy BlueOpens in a new window or tabBrand New$14.99Free shippingFree returns
- ARMEDES Mens Short Sleeve T-Shirt Cool Dry Compression Baselayer AR 131Opens in a new window or tabBrand New$13.99Free shippingFree returnsSave up to 10% when you buy moreTop Rated Plus
- SmartWool All Season 150 Merino Base Layer Long Sleeve Shirt Men's TopOpens in a new window or tabBrand New$55.00 to $59.00+$8.99 shipping26+ sold
- ARMEDES Mens Mock Long-Sleeved T-Shirt Cool Dry Compression Baselayer AR 53Opens in a new window or tabBrand New$15.09Free shippingFree returnsSave up to 10% when you buy moreTop Rated Plus
- 32 Degrees Women's Sz XL Cozy Heat Long Sleeve Scoop Neck Base Layer Top MauveOpens in a new window or tabBrand New$9.99+$4.99 shipping
- Women 100% Merino Wool Shirts Midweight Winter Warm Base Layer Zip Neck Ski TopOpens in a new window or tabBrand New$42.89Was: $65.9935% offFree shippingFree returnsTop Rated Plus
- ARMEDES Mens Sleeveless T-Shirt Cool Dry Compression Baselayer AR 121Opens in a new window or tabBrand New$13.99Free shippingFree returnsSave up to 10% when you buy moreTop Rated Plus
- Patagonia Mens Medium Mars Capilene Base Layer T Shirt Long Sleeve GreenOpens in a new window or tabBrand New$79.99+$6.00 shippingFree returnsLast one
- Mens Compression Base Thermal Layer Workout Leggings Gym Sports Training PantsOpens in a new window or tabBrand New$11.99 to $12.99Free shippingFree returnsSave up to 20% when you buy more
- Thermal Underwear Women Winter Base Layer Set Top Bottom Long Johns Fleece WarmOpens in a new window or tabNew (Other)$15.95 to $27.95Free shippingFree returnsSave up to 20% when you buy more
- Items Per Page