Questions? Leave a comment below! Like new condition Please see all pics Non smoking home The Freeflow rucksack keeps you cooler and more comfortable than ever, with a unique new back design that maximises airflow and comfort and reduces the build up of heat and sweat. The innovative design ensures minimal contact between the pack and your back, allowing significantly more air to flow and keeping your back cooler than a close fitting rucksack Curved design maximises airflow across the back Back stays cooler, reducing the build up of heat and sweat Detachable waist strap H2O reservoir compatible