IDC®Longwalk dog harness has built-in elastic elements in three places, which, following the tiniest movements, gradually come into operation depending on the force of the tuggings. This is Duo-Flex® micro-vibration absorbing system, developed for protecting the joints and providing maximum freedom of movement. The purpose of this up until now unique system is to dampen the smaller or larger tuggings acting on the dog and the person, thereby protecting the joints.