The Gradient rucksack for the 2012 season features new design and materials. Attention has been given to the design of the main load bearing areas; where the shoulder straps join the base of the bag for example. This improved design and clever use of material geometry gives a stronger bag without having to use extra reinforcements that add weight. The zips are reassuringly by YKK and they are further protected by 3 compression straps each side and one on the top, that take the strain off the zippers. the compression straps also allow effective compression of the load for the longer walk-ins. The hip belt has a zippered and lined pocket for mobile phone, wallet etc. the belt is well padded but can be removed to facilitate airline transport etc.. The rucksack is very comfortable and carries higher for improved ergonomics and better freedom of movement. The top pocket is a useful size and there is a clear plastic information pocket next to the haulage strap located between the shoulder strap attachment points. The Rucksack is supplied with all new season models and is available individually in sizes M L XL.