Ralph Lauren has just released a brand new line of high-performance bags as part of his men’s athletic line, RLX. One standout piece features is a sporty number made from a thin, seamless, and water-resistant material, featuring an integrated solar panel. Certainly a sweet and stylish design, the Solar Panel Backpack is also a practical piece that generates enough energy to charge an iPod or cellphone in a matter of hours. But at 800 bucks a pop, is this backpack worth its hefty price tag?