Ergo-shaped for maximum comfort and agility this is a perfect day pack with many extras. Features: Body-hugging compact design Expandable main compartment Front panel organiser area with 'office' pockets and key fob Side compression straps Integrated & detachable raincover Double pouch side pockets One is velour lined (for sunglasses) with mp3 headphone access point Zippered mesh hip belt pocketst Hydration bladder sleeve and guide straps, (bladder not included with bag) Internal padded laptop compartment and divider compartments Safety reflective logo and whistle buckle Reversed, water-resistant zips Water resistant fabric and lined ID window with ID card included Volume: 26 litres. Expanding to: 35 litres Size: Height = 46cm Width = 28cm excl. side pockets. 42cm incl side pockets Depth = 20cm at base. 26cm at base incl expanding section Max Laptop Dimensions: approx. 26cm wide Weight: 1.25 Kg