Energy Lock System: Energy-returning mesh helps keep your foot locked in from take-off to landing The sockliner is produced with the solution dyeing process that reduces water usage by approximately 33% and carbon emissions by approximately 45% compared to the conventional dyeing technology FF BLAST PLUS cushioning: This foam is made from at least 20% bio-based material from renewable sources such as leftover waste from sugar cane processing RISETRUSS technology: Helps players transition horizontal power to vertical power without losing energy Curved heel shape: Allows athletes to cut-in more smoothly and set themselves up for a more powerful jump.