Thule Achiever 15" Computer Backpack. The Thule Achiever 15" Computer Backpack is a streamlined 24L backpack with storage for campus essentials, including a 15" laptop and 10.1" tablet. Protect a 15" MacBook /15.6" PC in the padded sleeve with SafeEdge construction and store a 10.1" tablet in a separate protective sleep. Protect your phone, sunglasses or other small valuables in the external, soft-lined, padded pocket. Keep your small electronics and accessories organized in the quick access pocket with zippered compartment, mesh pocket, pen storage and key leash. Keep your water bottle accessible in the side mesh pockets. You can carry this bag in comfort with the padded backpannel with airflow channels or easily grab it and go with the webbing haul handle.