Scholl In-balance Everyday Knee to Heel Orthotic Insole helps alleviate pain in knees, heels and aching legs caused by stress when walking. Structured arch support helps to reduce the excessive inwards rolling of the foot which can cause painful stress on the heel. Deep heel cup works with the arch support to help reduce stress experienced by the lower limbs which helps to relieve pain in knee. Before usage, make sure the product fits well in the shoe. The heel of the insole should be placed- against the back of the shoe. For some people, orthotic insoles may take time to feel comfortable. Feet need to get used to the structural properties of the insole, so a break in period may be necessary. If needed, build use gradually by wearing the In-Balance Orthotic Insoles for an increasing number of hours each day until you can wear them all day. If pain persists, discontinue use and consult a professional for advice.