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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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Icebreaker: Deals
(36 products)Products (36)
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- ColorsREI Outlet
IcebreakerLifestyle Ultralight Crew Socks - Kids'
$10.73Save 23%compared to $14.00 - REI Outlet
IcebreakerElemental Long-Sleeve Zip Base Layer Top - Men's
$194.73Save 25%compared to $260.00 - ColorsREI Outlet
IcebreakerLifestyle Ultralight Crew Socks - Kids'
$11.73Save 26%compared to $16.00 - REI Outlet
IcebreakerMerino Oak Jacket - Women's
$299.73Save 40%compared to $500.00 - ColorsREI Outlet
IcebreakerMultisport Light Micro Socks - Women's
$14.73Save 18% - 22%compared to $18.00 - $19.00 - ColorsREI Outlet
IcebreakerHike Medium Crew Socks - Men's
$17.73Save 19% - 22%compared to $22.00 - $23.00 - ColorsREI Outlet
IcebreakerMultisport Light Mini Socks - Men's
$14.73Save 18% - 22%compared to $18.00 - $19.00 - REI Outlet
IcebreakerBodyfitZone Merino 150 Zone Thermal Leggings - Women's
$78.73Save 25%compared to $105.00 - REI Outlet
IcebreakerMerino Dawnder Long-Sleeve Plaid Flannel Shirt - Men's
$164.73Save 25%compared to $220.00 - REI Outlet
IcebreakerSphere II Long-Sleeve T-Shirt - Women's
$63.73Save 25%compared to $85.00 - ColorsREI Outlet
IcebreakerHike Medium Crew Socks - Women's
$17.73Save 19% - 22%compared to $22.00 - $23.00 - REI Outlet
IcebreakerBodyfitZone Merino 200 Zone Long-Sleeve Thermal Half-Zip Top - Men's
$97.73Save 24%compared to $130.00 - REI Outlet
IcebreakerBodyfitZone Merino 150 Zone Crewe Thermal Top - Women's
$55.73Save 34%compared to $85.00 - REI Outlet
IcebreakerBodyfitZone Merino 150 Zone Crewe Thermal Top - Men's
$69.73Save 26%compared to $95.00 - REI Outlet
IcebreakerMerino Anatomica Boxers with Fly - Men's
$33.73Save 25%compared to $45.00 - ColorsREI Outlet
IcebreakerSki+ Medium OTC Socks - Men's
$23.73Save 15%compared to $28.00 - REI Outlet
IcebreakerBodyfitZone Merino 150 Zone Long-Sleeve Crewe Thermal Top - Men's
$78.73Save 25%compared to $105.00 - REI Outlet
IcebreakerLifestyle Ultralight Crew Socks - Women's
$14.73Save 26%compared to $20.00 - ColorsREI Outlet
IcebreakerLifestyle Ultralight Crew Socks - Men's
$15.73Save 21% - 25%compared to $20.00 - $21.00 - ColorsREI Outlet
IcebreakerSki+ Medium OTC Socks - Women's
$23.73Save 15%compared to $28.00 - ColorsREI Outlet
IcebreakerSki+ Medium OTC Socks - Kids'
$15.73Save 21%compared to $20.00 - REI Outlet
Icebreaker200 Zone Long-Sleeve Half-Zip Base Layer Top - Women's
$96.73Save 25%compared to $130.00 - ColorsREI Outlet
IcebreakerHike Light Crew Macro Stripe Socks - Kids'
$12.73Save 15% - 20%compared to $15.00 - $16.00 - ColorsREI Outlet
IcebreakerAnatomica Cool-Lite Boxers - Men's
$37.73Save 24%compared to $50.00 - ColorsREI Outlet
IcebreakerLifestyle Light Crew Socks - Women's
$15.73Save 21% - 25%compared to $20.00 - $21.00 - REI Outlet
IcebreakerZoneKnit Merino T-Shirt - Men's
$66.73Save 25%compared to $90.00 - REI Outlet
IcebreakerMerino 200 Sonebula Long-Sleeve High-Neck Thermal Top - Men's
$77.73Save 35%compared to $120.00 - REI Outlet
IcebreakerZoneKnit Merino Slit-Back T-Shirt - Women's
$66.73Save 25%compared to $90.00 - REI Outlet
IcebreakerSierra Fleece Gloves
$33.73Save 25%compared to $45.00 - ColorsTop Rated
Icebreaker200 Oasis Crew Top - Women's
$49.83 - $105.00
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How to Choose Base Layers
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How to Choose Sun-Protection (UPF) Clothing
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Layering Basics
Learn the basics of layering clothing so you can stay comfortable outdoors. Includes info on base layers, middle layers and shell layers.