Custom Backpacks, Solo NY Re:define Backpack - Recycled PET & Antimicrobial, The Solo NY Re:cycled Collection presents the Re:define Backpack constructed with recycled PET material created from 8 recycled PET bottles and with anti-microbial and water-repellent coatings to provide protection from bacterial growth and to help keep your bag contents dry. Purchase with purpose as the National Forest Foundation will plant a tree with the sale of each Re:define Backpack! ... #KL2054 $107.95/each.