Lass 21B includes many sires who have been pillars of success within their respective breeding programs. Ribeye 103R continually added pounds and performance to his progeny, Knight Hawk makes females that can produce right alongside the best of them and Dynamo 6Y improved foot and leg structure in both North and South America like no other. Lass 21B has a lot of proven history in her genetic make-up however her future is equally as bright.