Dynamic cushioning system for insoles

A cushioning system, comprising an insole having:

• a polyurethane fluid chamber having top and bottom surfaces, hindfoot, midfoot, and forefoot portions extending between a heel end and a toe end, and having a lateral (outer) side and a medial (inner) side;
• a flexible fluid reservoir cell centered between the lateral and medial sides in the hindfoot portion;
• three flexible fluid reservoir cells in the forefoot portion positioned laterally between the lateral and medial sides, and laterally interconnected by secondary forefoot fluid transfer channels;
• and
• a single main fluid transfer channel spanning the midfoot portion from the hindfoot portion to the forefoot portion and having two branches, connecting the main fluid transfer channel directly to the outer cells of the three laterally interconnected forefoot fluid reservoir cells, in the forefoot portion to connect, in fluid exchange communication, the main fluid transfer channel to each of the three laterally interconnected forefoot flexible fluid reservoir cells, such that the three laterally interconnected forefront fluid reservoir cells are each in direct fluid exchange communication with the centered hindfoot fluid reservoir cell via the main fluid transfer channel to provide a reactive fluidic network, wherein the diameter of the single main fluid transfer channel, including of the branches thereof, is a value in a range of 5 mm to 10 mm, and wherein the fluid chamber is filled with a liquid silicone gel to a level of 80% to 85% of a resting (unstretched) fluid capacity of all of the fluid reservoir cells and the fluid transfer channels, collectively.