The P.Ride 45+5 is a veritable pro among the zip-on backpacks by ABS. It has plenty of space and a highly-adjustable lid compartment with up to 50 L of volume. Lengthy ski tours and multi-day events in the back country are not a problem for this well-equipped backpack. When combined with the P.Ride Base Unit, it's the perfect avalanche backpack with an elaborate airbag system! The ski fastening on the side makes it comfortable for skiers to wear. The zip-on can also hold a snowboard or snowshoes. The XXL lid compartment is particularly spacious, offering storage for valuables, snacks, and other things. To round out the ensemble, this zip-on has easy-access side compartments for skins and water bottles. With a separate emergency compartment on the front, equipment for avalanche rescue searches is easy and simple to access. It's easy to compress the floor of the backpack if you don't need much volume. Other features include a detachable helmet net and a practical pick holder. This makes the P.Ride 45+5 a spacious all-rounder for deep snow lovers of all stripes! Note: This is merely a zip-on backpack without a base unit. That is, it doesn't have an ABS airbag or a carry system. The base unit and release unit are available separately for maximum flexibility. That way, you're able to customize this set with the ABS components of your choice!