10 Seconds Flat Foot Insoles (#10SFF) - One Pair 

Flat Foot Insoles do not work with other insoles or orthotics. Remove existing insoles or orthotics before inserting the Flat Foot Insoles. Shoes that have a built-in (non-removable) arch support or highly raised arch area may cause discomfort. If you wear orthotics, consult your Doctor before wearing Flat Foot Insoles. If you experience acute discomfort or pain from wearing Flat Foot Insoles, discontinue use.
 
Allow for a few days of light to moderate activity using the Flat Foot Insoles before engaging in strenuous workouts or long distance runs. The first few times you wear the insoles, you may feel slight pressure in the arch area and/or some tightness in the calf muscles.