Hayabusa’s Kusari™ Training Shirt is unlike anything else on the market today.  It’s designed for high level training and can withstand the most intense of workouts..  Available in black or white, the Kusari™ is constructed from a breakthrough fabric that is tough, lightweight and breathable.  Complete with a functional hybrid collar and an integrated mouthguard pocket, the Kusari™ combines enhanced performance, unparalleled comfort and superior construction.  This product is poised to revolutionize combat and training apparel.