Backpacks. Rucksacks. Over-the-shoulder stuff holder. It might not be large enough to hold a boulder, but this Whillas & Gunn Nullabor Rucksack can fit many medium to large size rocks in its cinch closure, leather strapped main compartment. Quick reach around for access to the 9″ zipper pocket on the outer left. Take it off and pop the hood and there’s also a 10″ zipper pouch pocket on the inside. Reinforced, padded, adjustable straps keep it where it belongs – even if that means it’s just sitting on your floor and getting ogled when it’s not in use.