A great choice for bike commuting and active everyday life - the Roll-top keeps your gear dry in small rain showers. - Pleasant AirScape back panel - Made of tough and waterproof 450 denier polyester, made of recycled fiber - TPU coating makes the fabric waterproof - The seams are not sealed - prolonged rain does seep in - Padded pocket for a computer up to 16" - Zippered front pockets - Internal pockets for documents and small items - Chest strap with whistle in the buckle - Detachable hip strap - Attachment point for a LED This is a PFC-free product.