Rollerblade - Lightning 03 (Grey/Yellow) - Men's: For fitness-oriented skaters who want maximum comfort along with best technical features and performance. Specialized advanced liner featuring CoolMax. Lycra slide for easy foot entry. Professional footbed created with two different materials: one structuring base material, stiffer at the rear and one surface material for comfort. Shock absorber in the the heel. Vents for breathability. Anti-bacteria surface treatment. Terry cloth finish for added comfort.