Some product details are different.
Blue colour: Classic multi-pocket trekking rucksack, ideal for families who love adventure. It incorporates the new COMFORTZONE HOLES SYSTEM, padded and adjustable shoulder straps and hip belt and a sliding chest strap with whistle. Side compression straps, trekking pole holders, ice axe holder. Double pocket on the hood, with emergency call number inside. Front pocket for accessories, and useful dividable compartment on the bottom, two side pleated pockets, two side water-bottle pockets and 2 on the lumbar cushions. Hydration system compatible, equipped with pull-out rain cover in the base.

Green colour:  provided with multi-functional pocket on shoulder strap and holed breathable lumbar cushions.