Superfeet’s Dynamic Run insole wants to get out of the way. The all-new Dynamic Run insole from Superfeet is made to help your feet move the way they’re designed to. With lightly structured support and cushioning, Dynamic Run flexes and adapts to your foot as you move. An energizing heel cushion disperses impact and reduces excess vibration to fight fatigue, and Superfeet’s Moisturewick technology keeps your dogs fresh when you sweat. Dynamic Run is Superfeet’s lightest support, but it doesn’t skimp on durability. The insole keeps its shape and stays comfortable for up to 12 months or 500 miles of use. Plus, it's only available at Fleet Feet.