Sport: Training & fitnessExtras: Fastening for a helmetRain cover: IntegratedStraps: Chest strapCompartments: Laptop compartmentFastening: ZipOpening system: ToploaderPattern: PlainDetails: Buckle, two-way zip, padded backGrip: Extra strongMaterial advantage: Long-lastingQualities: ReflectiveDrinking system: AdaptableVolume: 23 l (Size One Size)Weight: 600 gCarrying options: Adjustable shoulder strapsArticle number: DC152N02B-M11