The bag that launched the iconic Knack style. Professional and modern, the Series 1 Medium Expandable laptop backpack combines great everyday function with great travel function in the same bag.

Key Everyday Features:

• Easy-access, padded side-zip computer pocket for 15" laptops
• Spacious main compartment with organization pockets, fleece-lined tablet pocket and removable key leash
• Hidden, zip-away side water bottle pocket

Key Travel Features:

• Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes
• Meets most popular carry-on requirements as well as fits under most seats
• Packing compartment with easy-access suitcase lid
• Hidden trolley sleeve slips over wheeled luggage handles

Key Technical Features:

• Custom-developed, durable, water-resistant body fabric
• Molded, comfort-cool foam back panel
• YKK'swater-resistant zipper with custom-designed pullers