INVISIBLE THREE HEIGHTS: The half insoles are invisible in your shoes. Nobody would know the secret of your increased height. Three optional heights are perfect for different occasions like meeting, appointment, wedding, shopping or any events where there is a camera lurking about. . MODERATE HARDNESS: The soft honeycomb design layer and stable TPE material are crafted to fully absorb shock on feet with every step. Additional high-elastic ball under heel effectively reduces stress on heel. More lightweight and durable while providing enough support to your heel. . ALL DAY COMFORT: The odor free breathable fabric can highly wick away moisture and keeps your feet fresh all day long. The honeycomb bottom with stickiness prevents insoles slipping inside your shoes. The U shape heel cup helps maintain stability and position the heel naturally to make your heel more comfortable. . SPORTS, WORK & LEISURE: The heel cushion inserts are perfect for improving performance and reducing fatigue in daily life. Good cushioning effect can reduce impact on the joints and muscles, relieving pains caused by leg length discrepancies, heel spurs, achilles tendinitis. .