Springboost Women&#39;s Iguana Outdoor Shoe,Lt. Grey/Black/Blue,9.5 M,Springboost" /> 100% Neoprene Strenghtens core muscles, hamstrings, calves and glutes by working the entire muscle chain Alleviates pressure on joints and lower back pain Improves posture and body alignment Improves ankle stability and range of motion Enhances blood circulation in the legs