Aircomfort flexlite system in order to achieve excellent comfort a light pack weight while also remaining well ventilated across the back deuter have developed the aircomfort flexlite system the deuter aircomfort back system effectively prevents heat build up or sweaty backsanatomically formed shoulder straps with perforated foam and large celled 3d airmesh lining to make them airy twin frame construction gives the aircomfort flexlite system its special lightweight properties at the same ti