Bags Backpacks Tyr Alliance Team 45 Liters. Always be ready with the TYR Alliance 45L Backpack. A new twist on an old classic, the LATBP45 is packed with state-of-the-art features engineered for athletes on the go. With a cutting-edge space saving design, the 45L maximizes storage without the bulk. In addition to contour shaped padding for ideal ergonomics and lumbar comfort, the new design also includes multiple front and side pockets, expandable mesh pockets for separating wet and dry items, spring hooks for wet suits, a mesh water bottle pocket, adjustable straps and a protective storage space for large electronics. The TYR Alliance 45L Backpack is designed with fabric technology to ensure a lightweight feel and durable, water resistant construction.