The Voltaic Generator is designed to attach to a larger rucksack to provide power for extended outdoor use. It also stands alone for use as a small daypack and laptop bag. It features a lined MP3/ sunglasses pouch inside, loops with removable fastek buckles to attach to another bag and serve as an archor point and MOLLE- compatible PALS for attachment to military- style rucksacks. It can be worn as a backpack or sling bag. Its shoulder straps can be staxhed in back sleeve when not in use. It is big enough to carry a laptop with a 15 " screen (14" x 10" x 2" or 35 cm x 25 cm x 5 cm). Wire channels throughout the bag for headphones, bladder tubes or hand free phone kit make this bag very useful. It weighs 2.9 lbs (1,3oo grams) including battery and solar panels. Its dimensions are 17" high x 10- 12" wide x 3-4" deep ( 43 cm high x 25- 30 cm wide x 7- 10 cm deep ). Volume is 600 cubic inches ( 10 liters)