• Online:
  • URL for this product:
  • From the U.S. and CanadaCall 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • InternationalCall 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.

SmartWool Midweight Long Underwear Bottoms - Wool - Men's

This item is currently sold out or unavailable online.

Or, may we suggest shopping for similar items:

Shop more Men's Long Underwear BottomsShop more SmartWool

This page is provided for reference to historical product information.

The SmartWool Midweight Long Underwear bottoms offer natural stretch and breathability for stop-and-go activities or when temperatures fluctuate.

  • The SmartWool Midweight Wool Long Underwear Bottoms are made of 100% super-fine merino wool to help maintain your comfort whether the climate is warm, cold or in-between
  • Bottoms feature a covered elastic waistband to prevent chafing and a traditional fly design
  • Flatlock side-seam construction prevents chafing
  • SmartWool® is guaranteed not to itch and can be repeatedly washed and dried without shrinking
  • Easy care: machine wash and dry on cool temperature setting


Item 723971


This item's hot - and it's only available online.

REI Membership

SmartWool Midweight Long Underwear Bottoms - Wool - Men's Specs
Best use
Wool / wool blend
Merino wool
Fabric type
Sun-protective fabric
Moisture wicking
Quick drying
Underwear weight

SmartWool Midweight Long Underwear Bottoms - Wool - Men's

Loading Ratings & Reviews...

Ask a question and have it answered by REI product experts and fellow outdoor enthusiasts. Need immediate assistance? Use Live Help.

Loading Questions & Answers...

How are we doing? Give us feedback on this page.

FREE SHIPPING With $50 minimum purchase

MEMBERS, EARN A $20 BONUS CARD! When you spend $100 April 14-29. Single-use bonus card redeemable May 2-12. Details
  • Join REI today!
  • REI Membership
  • REI member benefits include an annual refund (typically 10% on eligible purchases).
  • Join REI today!
  • Sign up for REI Gearmail®
  • and get 15% off selected items!
  • Store Locator
  • Locate an REI store near you.
  • Find a Store
© 2014 Recreational Equipment, Inc. All rights reserved. REI, the REI Tree and Mountain design, Novara, and
REI Adventures are trademarks of Recreational Equipment, Inc.

Find REI on: FacebookTwitterYouTubeFlickrMobile site