- Shock Absorption: Ultra Performance Boost Insoles create a protective barrier that absorbs shock, reducing discomfort and fatigue in your feet for smoother movement. - Anti-Swelling Effects: These insoles provide gentle compression and support to alleviate swelling and enhance circulation, offering relief after prolonged standing or activity. - Spider Vein Relief: By promoting proper blood flow and reducing pressure, these insoles help alleviate discomfort and improve the appearance of spider veins. - Varicose Vein Support: Designed to minimize heaviness and aching in the legs, these insoles enhance blood circulation and provide cushioning to improve leg comfort and health. - Improved Blood Flow: These insoles restore proper blood flow through effective support and alignment, reducing strain on feet and legs for better circulation and foot health.