backcountry backpack with airbag and ergonomic fit. the a.light tour is a versatile touring backpack with avalanche airbag for use in the backcountry. with its ergonomic fit, the backpack sits close to the body and distributes weight comfortably without weighing you down or restricting your freedom of movement.the release handle is height- and side-adjustable and thus perfectly adjustable for you. the abs twinbags is a unique airbag system with two independent airbags with a volume-optimised shape.of course, this backpack comes with all the features that a backcountry backpack must have.abs® zipon systemthe patented zipon system allows the size to be expanded or reduced from 25-30 l to 35-40 l. with its sophisticated design, the a.light tour has been developed for the different needs of tourers - from beginners to ambitious tourers looking for a challenge in technical terrain.abs easy.techthe easy.tech system can be tensioned without tools and you can mount it on the left or right, also without tools. another new feature is the test triggering, which can be done without using the cartridge. this makes you feel even safer and the backcountry training is even more real. you no longer have to change the handle and the easy.tech offers you visual feedback on the system status.you can also retrofit this system on all abs a.light. cartridge and trigger unit are not included in the scope of delivery.