The New Balance Pressure Relief insole is designed to reduce friction within your shoe and keep your feet blister-free. This Pressure Relief Insole protects your feet by redistributing the pressure throughout your foot. The insoles can be used throughout the day while doing any kind of activity. The Plastazote® top layer uses your body's heat to mold the base of the foot. This is the neutral version for those who don't like the feeling of built-in metatarsal support. New Balance products may not be shipped internationally.