Abs vario 32 zip on backpack the abs vario 32 zip on backpack is perfect for a full day out on the slopes featuring a large main compartment that also features special easy access to a snow shovel and avalanche probes while the back has been designed to slip easily onto the twinbag system or the powder base unit this abs backpack also features multiple zipped pockets to the front and sides for extra storage along completed with the abs branding to the front avalanche airbag backpack