The Proviz REFLECT360 Backpack is unisex and fully adjustable and received the prestigious 'Highly Commended' review from Cycling Plus Magazine and the Evening Standard's 'ES Top Pick' for Cycling Commuting Backpacks. It is designed to be an extremely comfortable fitted rucksack that fits closely to your body so that you are completely stable under use. Using 100% CE EN 20471 certified reflective material, the Proviz REFLECT360 backpack's millions of integrated reflective beads helps other road users to identify your position on the road at night. The backpack includes many added extras including waterproof AquaGuard? zips, adjustable waist/hip strap, adjustable chest strap, webbing haul, gear loops, mesh pockets, laptop compartment and a light loop to make this rucksack the ultimate rucksack for many types of use. The integrated BES Beetle ventilation system helps to ensure good airflow between the bag and your back to help avoid an uncomfortable clammy back! About the fabric: The