lightest boot chains

If you don’t need a permanent traction solution (like this: http://www.theultralighthiker.com/4wd-boots/), you can carry some boot traction aids such as these. The Yaktrax Pro pictured above weighs 4.7 oz (145 grams). Those steel coils should bite into ice and snow and get you across a glacier or two without weighing you down in the meantime.