Comfort Footbed:5MM OPEN CELL FOAM WITH LESS THAN 5% COMPRESSION SET OVER TIME, SO THE CUSHIONING AND FIT NEVER CHANGES INSIDE THE SHOE TO PROVIDE ALL DAY COMFORT | Comfort Footbed:95% RECYCLED | FLEX GROOVES:for increased flexibility | IMEVA midsole:Soft and cushioning | Lightweight mesh material:provides increased breathability