Materials:
* Shell: 100% Nylon

Specs:
* Fits a 15 in / 38.1 cm laptop
* Capacity: 1,830 cu. in. / 30L
* Dimensions: 18.5 x 13 x 6 in 47 x 34 x 16 cm
* Weight: 1.54 lb 24.6 oz / .70 kg / 700 g

Features:
* Omni-Shield™ repels moisture and resists stains by preventing liquids from absorbing into fast-drying yarns, so you stay clean and dry in damp, messy conditions
* Breathable back panel
* Removable sternum strap for support
* Padded laptop sleeve can accommodate most computers up to 15 inches
* Contoured, padded shoulder straps for comfort
* Dual water bottle pockets for easy access to hydration
* Two main compartments give you organization options
* Reflective detail for visibility
* External security pocket for valuables
* Interior accessory pocket holds essential items