Both the FS1 and FX2 are two piece all composite bats with optimized feel due to Easton’s patented two-piece ConneXion technology and SIC Black Carbon handle. Both bats also have IMX Composite Barrels that optimizes the sweet spot for maximum performance. The main difference is the FX1 is an end loaded bat with a larger sweet spot. The FS1 is a more balanced bat. Both models have an Ultra-thin handle with performance diamond grip.