The PowerStep PULSE line of running shoe insoles were designed specifically for use in athletic shoes. Extra cushioning and arch support to increase comfort, reduce fatigue and improve the efficiency of your stride. The power of ShockAbsorb. Running insoles designed with lighter, thinner, breathable open cell technology, ShockAbsorb is made for long lasting, high performance, shock and impact absorption. This allows for reduced fatigue and increased performance. PULSE running insoles includes a firm but flexible contoured neutral arch support and a deep heel cradle which increases comfort, and stability. This motion control, combined with targeted dual-layer cushioning helps absorb shock at impact to reduce stress on the feet, ankles, joints, and tendons. PULSE insoles require no trimming simply order your shoe size for proper pain relief. First time PowerStep or orthotic insole users may need a transition period of wearing only a few hours a day until feet are accustomed to true support and stability. PULSE Performance insoles are proudly made in the USA. Your 100% satisfaction is our #1 concern so all of our products are backed by our 30-day guarantee.