Solo Define Recycled Backpack Collection. GREAT STYLE WHILE SAVING THE PLANET. We are tackling environmental issues from all angles, in-style. Designed in urban-cool gray, our Recycled Collection brings a sustainable angle to sleek design, making green choices accessible to the masses. Each item in this collection is built with city-functionality in mind and offers an uncompromising style. The Define Recycled Backpack has a fully padded 15.6” compartment with lockable zippers. The RFID data protection pocket helps secure personal data encoded on your credit cards, IDs and passports.