365 Backpacks are restocked for 18/19 Fall/Winter! Convertible from 30L to 45L for all your travels and commutes year round. Backed with a lifetime warranty. The 365 Backpack is weather proof so you can keep your goods protected from the elements. Built with Airspace™ Ballistic 600D Shell and teamed up with technical HF Welding Construction and topped off with beefy YKK zippers and components.