The jack wolfskin highland trail xt 50 is a fantastically well equipped and comfortable rucksack with a capacity of 505 litres making it ideal for day treks or short hiking breaks the shoulder straps and back system on this highland trail xt 50 backpack are fully adjustable so you can get the most comfortable and personalised fit possible the x transition carry system is made up of two aluminium struts that are in an x shaped configuration and are fully padded to offer an excellent load distrib