Prosthetic foot with layers of fibrous material

A limb support device comprising:

• a body comprising:
• a proximal portion with a first width;
• a distal portion with a second width greater than the first width;
• a transition portion between the proximal portion and the distal portion, the transition portion with a tapered width that transitions from the first width to the second width;
• a plurality of layers of fibrous material having a plurality of fibers, each of the plurality of fibers extending linearly and continuously along each of the proximal portion, the transition portion, and the distal portion, the plurality of fibers generally parallel to each other and to outer edges of the proximal portion, the distal portion, and the transition portion;
• and
• a fin formed on a posterior surface of the proximal portion of the limb support device, wherein the fin is configured to increase or maintain stiffness of the limb support device with less material than would be required without the fin.

A limb support device comprising:

• a first portion having a first dimension along a first axis;
• a second portion having a second dimension along the first axis;
• a plurality of layers of fibrous material extending and continuous between the first portion and the second portion;
• a first polymer impregnating the plurality of layers of fibrous material and polymerized during a curing process, the first polymer causing the plurality of layers of fibrous material to realign to a shape corresponding to a contour of an intermediate portion of the limb support device between the first portion and the second portion during the curing process;
• and
• a fin formed on a posterior surface of the first portion of the limb support device, wherein the fin is configured to increase or maintain stiffness of the limb support device with less material than would be required without the fin.