The PKG Umiak 28L Backpack is expertly crafted with 9.24 recycled 500ml plastic water bottles, making it an environmentally conscious choice. The lightweight, water resistant, tear resistant and antimicrobial 75D recycled polyester exterior fabric makes the Umiak durable, while the contoured shape and reinforced seams add an extra layer of protection. Easy to use features such as a solid satin webbing adjustable strap, exterior pocket, locker loop and plastic snaps make it perfect for everyday use.