Run Faster, Jump Higher Guaranteed. Volleyball Equipment, Track and Field, Insoles, Football Equipment, Track Insoles, Vertical, Jump Higher, Endurance, Imprive your 40 yard dash times immediately. Springbak Springsoles are made from the first footwear material to be issued U.S. patents in the category of "Performance Enhancing Shoe Components". Springbak Springsoles feature a "Recoil Process" that returns 80% energy to the wearer by compressing then springing back to original shape. This process also increases your speed, quickness, and strength while reducing fatigue, shortening recovery time and totally eliminating shin splints forever.
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