The sole may be soft or hard the upper is often covered in embroidery and beading. Each tribe has its own style of moccasin, and it is even possible to a wearer’s tribe just by looking at the footprint. The Plains Indians wore hard-sole moccasins because their terrain is rocky and has cactuses growing. The soft soled of the Eastern tribes was suitable for the leaf-covered ground in a forest. They also allow the wearer to be virtually soundless when walking, which is particularly useful while hunting.