• 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.

Mammut Masao Rain Jacket - Men's

This item is currently sold out or unavailable online.

Or, may we suggest shopping for similar items:

Shop more Men's Rain JacketsShop more Mammut

This page is provided for reference to historical product information.

From expeditions to multipitch climbs, the Mammut Masao Rain jacket keeps you protected from changing weather conditions.

  • Smooth polyester shell features a DRYtech™ 3-layer waterproof breathable laminate for superior wind and rain protection; jacket is fully seam sealed
  • Nylon tricot lining easily slides over base layers
  • Hood can be adjusted vertically and horizontally, and is helmet compatible
  • Pit zippers let you vent body heat quickly
  • Watertight 2-way front zipper features an inner stormflap to keep the wind out
  • Zippered chest pocket and zippered handwarmer pockets
  • Drawcord hem keeps the cold out and features 1-hand adjustment
  • Mammut Masao Rain jacket features rip-and-stick cuffs


Item 838182


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

REI Membership

Mammut Masao Rain Jacket - Men's Specs
Best use
Polyester / polyester blend
Nylon tricot
DRYtech Premium 3-layer waterproof breathable laminate
29 inches
1 lb. 6 oz.
Fabric type
Shell fabric
Shell lining fabric
Type of waterproofing
Back length
Back length (in.)
Average weight

Mammut Masao Rain Jacket - 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