This just-in-case piece of gear is designed to keep you on the surface of an avalanche, thereby possibly decreasing your risk of burial. Mammut's line of these types of packs are designed so that you can remove the airbag system and use the pack without it, or insert the system into a second pack you might decide to purchase. At either 22 or 30 liters, the Ride On is the all-rounder in the line — sized for day tours. The main pack material is Cyclepet — made from recycled Pet bottles. The pack comes with the R.A.S. (Removable Airbag System) but please note that a refillable cartridge must be purchased separately. * Main product photo is Whale/White.