Waterproof fabric polyester taffeta lining with Polygiene freshness technology. Large main opening with two-way waterproof zip. Large accessories pocket with secure zip closure. Expands to 35 litres. RFID blocking pocket, padded. Ergonomic and stowable adjustable shoulder straps with rolled edge for comfort. TSA carry-on size. Adjustable sternum strap. Easy-access laptop and tablet compartment. Ultra-soft padded air mesh back panel. Rolling luggage compatible. Reinforced top and side carry handles. Zipped water bottle pocket. Internal zipped mesh pocket. Internal key clip. Fits up to 16 laptop. Decoration access. Dimensions: 19" (H) x 12" (W) x 6" (D) , expanded 19" (H) x 12" (W) x 9" (D) Volume: 25 litres/1, 525 cubic inches, expanded 35 litres/2, 136 cubic inches. Sedex certified.