SunLabz Solar Charger Backpack (7W) with 10,000 mAh Power Bank and 1.8L Hydration Pack and Ergonomic Carrying System BE ACTIVELY ENERGY EFFICIENT: Enjoy nature and preserve it at the same time with the Sunlabz 7W Solar Backpack. Ideal for holding backpacking supplies, as well as hiking, biking, or camping, the light, portable pack can hold and charge all your small mobile essentials using solar energy with the attached solar panel and our Voltage Stability Controller. That's what we like to call proactive, literally. PROTECT YOURSELF, YOUR PLANET, AND YOUR DEVICES: What's not to love? Put safety first with this mobile phone charger, ensuring you're never left with a dead battery in an emergency. Utilize clean, natural energy from the sun to power your devices, on the road or at home; anywhere you have direct sunlight. And prevent damage to your devices while traveling by tucking them in one of the perfectly sized and secure compartments of the durable backpack. STAY CONNECTED, OFF THE GRID: Whether you are bringing along a tablet for GPS, a phone for photography, or an iPod for some motivating music, the Sunlabz solar charger travel backpack will keep the juice flowing with high-efficiency 22% transfer rate solar cells, a 5V USB port, and protective Voltage Stability Control, which prevents unstable or damaging currents. Your search for the perfect camping backpack is officially over. KNOW THE FACTS: Solar power is abundant, clean, renewable, and effective. In fact, each hour, enough sunlight reaches the earth's surface to provide for the world's energy demand for a year. DEPEND ON DURABILITY: Crafted to withstand adventure, the solar power backpack is more than a solar battery charger. It is also a bladder backpack, with a 1.8L hydration pack and a plethora of pockets and compartments. The sport quality weather proof PVC fabric guarantees top performance and reliability, and weighs less than 3 lb. overall. The Sunlabz backpack is a necessary eco friendly addition to your hiking gear or camping accessories.