The Walker Pro Rolling Backpack from Think Tank Photo is a convertible backpack/rolling case designed and built for durability and comfort when traveling with camera gear. It is deep enough to accommodate a gripped DSLR or mirrorless camera body with a 200-400mm f/4 lens and has a padded sleeve that stores your 16" laptop. The padded, adjustable backpack straps and sternum strap provide lumbar support for all-day comfort. Dual trolley wheels and a telescoping handle allow you to breeze through airport checkpoints and the pack meets most airline carry-on regulations. A set of adjustable, padded interior dividers create a custom setup for your individual equipment needs.