New model for this year (Do not check this option if this model was listed as new in last year's Gear Guide)Ideal for long treks and camping all year long, the Lightning 50 is the perfect companion for the avid adventurer. The body is made of black 600D high performance polyester with top and bottom compartments that are separated by a draw-string shelf that when open becomes a single compartment rucksack. The top lid has an external zippered compartment, accessed from the back. There is also a draw-string cover over the main compartment with a deep vertical zippered compartment on each side of the pack. Lightning 50s back panel sports a vario adjustment system that will fit a user from a small size up to large.