The toughest medicine ball, reinforced with DuPont™ Kevlar® fiber. This extremely durable and low-bounce ball keeps its shape due to its patented construction. The tacky surface provides maximum control along with embroidered weight identification that won't fade or peel. Consistent 14in diameter regardless of weight. Part of the TRX Kevlar® line of products. This hand sewn Kevlar ball is made for tough workouts.