Keith Doubman Walking Across America With Lacrosse Stick Thu Jan 14 2021 | Nelson Rice | Fuel The supplies Keith Doubman has carried during his walk across America mostly fit in a 50-liter green Osprey backpack and weigh roughly 60 pounds. Well, maybe 65 if he’s carrying extra water. There are the essentials, including a tent, air mattress, medical supplies, two types of water filtration systems, two waterproof bags, two solar powered battery packs, a portable stove and enough peanut butter crackers and granola bars to last until he arrives at the next town. There’s also a tripod for his camera and a 4-inch 3D printed figurine of himself. There was a drone — until it broke and he had to ship it home to Pennsylvania.