The SPEED MENACE is a mid-cut lightweight fast bowling shoe which combines stability and flexibility to help with injury prevention....... - PERSONAL HEEL FIT (P.H.F.): 2 layers of memory foam line the collar and mold to the athlete's heel creating a personalized fit....... - SOLYTE MIDSOLE MATERIAL: A lighter weight midsole compound than ASICS' standard EVA and SpEVA... Also features enhanced cushioning and durability........ - TRUSSTIC SYSTEM: Reduces the weight of the sole unit while retaining the structural integrity of the shoe........ - REARFOOT AND FOREFOOT GEL CUSHIONING SYSTEMS: Attenuates shock during impact and toe-off phases and allows movement in multiple planes as the foot transitions through the gait cycle........ - DUOMAX SUPPORT SYSTEM: A dual density midsole system positioned to enhance support and stability positioned sport specifically........ - P-GUARD: An Abrasion and tear resistant synthetic material for increased upper durability........