Eva soles are a type of footwear insole that provides comfort and support for your feet. They are designed to be inserted into shoes to provide extra cushioning, arch support, and shock absorption. Eva soles are typically made from a type of foam called Ethylene-Vinyl Acetate (EVA), which is lightweight, flexible, and breathable. They are often used in athletic shoes, hiking boots, and orthotic inserts to reduce foot fatigue and alleviate pain.