The Ride On is the all-rounder among Mammut's line of avalanche airbag packs. At 22 liters, this one is made for short day tours and skiing the sidecountry. The main pack material is Cyclepet — made from recycled Pet bottles, and the pack comes with the Mammut Removable Airbag System, or R.A.S., which can be removed as desired. A refillable cartridge must be purchased separately.* Main product photo is Whale/White.