North Face Reversible Mercurial Jacket

Last time we climbed a volcano we almost suffer from hypothermia, don’t let this happen to you. The North Face Reversible Mercurial Jacket ($350) is a 23-once jacket when worn on the outside, the pockets stretch open and allow air to flow in and out. When reversed, the jacket pushes the pockets together and traps air inside them, providing greater warmth. As an extra temperature tamer, the aluminum-coated side reflects the sun’s rays, while the black side absorbs them.