Premium Shock Absorbing Foam - PULSE shoe inserts and insoles use a premium dual-layer foam to reduce stress on your feet, ankles, joints and tendons. This ball of foot cushion extends through the entire insole to help deliver bounce, and offer metatarsalgia relief Workout-Friendly Comfort & Support - These are great shoe inserts for running, as they provide a steady metatarsal pad for on-the-go relief. They'll also help reduce fatigue, and can be used as supination corrections insoles because they can help stabilize and align your feet Manufacturer's 60 Day Warranty - With PowerStep, you’re backed by a 60-day guarantee and a lifetime warranty on the plastic arch support (inside casing) against breakage under normal use. Only legitimate PowerStep products are eligible for the manufacturer's warranty Made in the USA