Half backpack and half portable power station, SciCon's Hydracharge Hydrapack Solar Backpack carries enough gear for a day of cycling or travel, with the serious bonus of built in solar panels to help keep all your devices charged up and ready to go. The panels will charge the lithium ion battery in under five hours, while the included Octopus adapter will accommodate any device you can think of, so you can make calls, take photos, download GPS maps, or keep track of all your key performance data. The Hydracharge is a fully functional hydration pack as well as your personal power plant, with a separate hydration sleeve that securely holds the easy cleaning and ergonomically constructed 1. 5L Hydrapack reservoir. You can stow your fully charged phone in the quick access pocket, stick some snacks or extra water in the side stashes, and still have enough room for a few layers, tools, and other essentials in the 7L main compartment. Even when your pack is fully loaded, the adjustable Air Mesh shoulder straps and hip belt will keep you riding comfortably, while the heavy duty zippers keep your gear locked away and reflective stripes add visibility if your ride lasts longer than you planned.