The Mountainsmith Day Lumbar Pack will comfortably haul your gear on any length of day hike or around town. The Day Lumbar Packs sturdy waist-belt can handle heavy loads, and it tucks away when you want to use the dual carry handles or removable shoulder strap instead. Mountainsmith equipped the Day with its Delta Compression System, which lets you adjust how your load sits to ensure what you carry is evenly distributed and pressed securely against your body. The Days two mesh pockets each hold a 32-ounce water bottle. The roomy main pocket holds anything else you could want, from clothing layers to your lunch. This pack also works well as a carry-ona back panel pocket holds your plane ticket.