Birkenstocks have a contoured footbed that supports the arch of your foot, which can help alleviate foot pain and improve your posture. The footbed is made from cork, a natural material that molds to the shape of your foot over time. Your Birkenstocks will become even more comfortable and supportive the longer you wear them. The toe grip is designed to help your toes grip the shoe, which can improve your balance and stability. Birkenstocks have a sole that provides shock absorption, which can reduce the impact on your feet and joints when you walk.