Hayabusa Alistair Overeem Signature Fight Shorts Contains Hayabusa's Guard lock inner grip waistband system Innovative tie system with indestructible webbing for a distinct customized fit Features the exclusive Mechanical PolyDirectional stretch fabric High tensile strength stretch panel and side split seams for unrestricted range of motion Reinforced T3 stitching for ultimate strength and durability Contains Hayabusa's Guard lock inner grip waistband system