Louisville -10 Kryo Thundernight Fastpitch Bat

Something is brewing–and it’s bad news for the other team. The Limited Edition 2026 Louisville Slugger Kryo Thundernight (-10) fastpitch bat is engineered to make all kinds of hitters feel more confident at the plate. A crackling violet pattern comes to life across the GO-EX1 Barrel System–a composite gapped wall design and internal disc system that works with the XPND End Cap to deliver unmatched feel, performance and sound. The shorter 30” and 31” lengths feature a redesigned, longer barrel profile with an expanded sweet spot and lighter swing weight–empowering smaller, younger players to strike the ball with force.