How to Choose Hiking Underwear
Your choice of underwear can have a big impact on your comfort while hiking. Learn what fabric, style, fit and features to look for.
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Smartwool Long Sleeve Men's Tops
(31 products)
Products (31)
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- ColorsREI Outlet
Smartwool Merino Sport Ultralite Long-Sleeve T-Shirt - Men's
$48.73Save 25%compared to $65.00 - ColorsREI Outlet
Smartwool Merino Sport Logo Long-Sleeve Graphic T-Shirt - Men's
$56.73Save 24%compared to $75.00 Smartwool Intraknit Merino Tech Half-Zip Hoodie - Men's
$69.83Save 60%compared to $175.00Smartwool Classic Thermal Merino Colorblock Base Layer Crew Top - Men's
$110.00- REI Outlet
Smartwool Merino Sport Long Sleeve Quarter-Zip Top - Men's
$71.73Save 24%compared to $95.00 - REI Outlet
Smartwool Classic All-Season Plant-Based Dye Merino Long-Sleeve Base Layer Top - Men's
$63.73Save 25%compared to $85.00 - Colors
Smartwool Intraknit Active Base Layer Top - Men's
$110.00 - ColorsTop Rated
Smartwool Merino Sport Long-Sleeve Quarter-Zip Top - Men's
$95.00 - Colors
Smartwool Intraknit Thermal Max Quarter-Zip Base Layer Top - Men's
$150.00 - ColorsTop Rated
Smartwool Intraknit Thermal Merino Colorblock Crew Base Layer Top - Men's
$125.00 Smartwool Intraknit Merino Tech Quarter-Zip Pullover - Men's
$67.83Save 60%compared to $170.00Smartwool Brookline Crew Sweater - Men's
$140.00- Colors
Smartwool Classic All-Season Merino Quarter-Zip Base Layer Top - Men's
$95.00 - Colors
Smartwool Classic All-Season Merino Long-Sleeve Base Layer Top - Men's
$90.00 - ColorsTop Rated
Smartwool Intraknit Thermal Merino Quarter-Zip Base Layer Top - Men's
$135.00 - $140.00 - ColorsTop Rated
Smartwool Merino Sport Hoodie - Men's
$100.00 - ColorsTop Rated
Smartwool Intraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Men's
$135.00 - ColorsTop Rated
Smartwool Merino Sport Long-Sleeve Crew Shirt - Men's
$85.00 - ColorsTop Rated
Smartwool Classic Thermal Merino Crew Base Layer Top - Men's
$110.00 - ColorsTop Rated
Smartwool Classic Thermal Merino Quarter-Zip Base Layer Top - Men's
$68.93 - $115.00 - Colors
Smartwool Intraknit Thermal Merino Crew Base Layer Top - Men's
$74.93 - $125.00 - ColorsREI Outlet
Smartwool Intraknit Merino Tech Full-Zip Top - Men's
$138.73Save 25%compared to $185.00 - ColorsREI Outlet
Smartwool Merino Sport Long-Sleeve Crew Shirt - Men's
$63.73Save 25%compared to $85.00 - ColorsREI Outlet
Smartwool Long-Sleeve Colorblock Henley - Men's
$67.73Save 24%compared to $90.00 - REI Outlet
Smartwool Hudson Trail Fleece Half-Zip Sweater - Men's
$89.73Save 25%compared to $120.00 - REI Outlet
Smartwool Winter Adventure Long-Sleeve Graphic T-Shirt - Men's
$41.73Save 44%compared to $75.00 - REI Outlet
Smartwool Brookline Crew Sweater - Men's
$104.73Save 25%compared to $140.00 - ColorsREI Outlet
Smartwool Sparwood Pattern Hoodie Sweater - Men's
$89.73Save 25%compared to $120.00 - ColorsREI Outlet
Smartwool Snowcat Trek Long-Sleeve Graphic T-Shirt - Men's
$56.73Save 24%compared to $75.00 - ColorsREI Outlet
Smartwool Cozy Lodge Buff Check Sweater - Men's
$112.73Save 24%compared to $150.00
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How to Choose Base Layers
Choosing the right underwear (base layer) is essential—learn how moisture-wicking materials, fabric weight and fit affect comfort in the outdoors.
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Learn the basics of layering clothing so you can stay comfortable outdoors. Includes info on base layers, middle layers and shell layers.
What to Wear Running
Running is more comfortable with the right clothing. This article highlights fabrics and features for warm weather and winter running.
