RMI and Whittaker Mountaineering Gear Guides Rainier Four Day Summit Climb - Page 19

Hard Shell (Layer 4) A jacket made of rain-proof material with an attached hood. We recommend a non-insulated jacket for this layer.\r\n\r\nWhat to Look for in a Hard Shell \r\nThe hard shell coat should be made of a water proof, nylon material (such as gore-tex). A thinner and lighter weight jacket is ample, and ideal for the climb. It should have an attached hood for protection from the elements.\r\n