For some it's that extra support and stability while you're doing box jumps. For others, it's protection for the knees when you're powerlifting. Whatever the workout, wearing fitness knee sleeves helps to give you more in each action.
Weight lifting knee sleeves are used by power lifters from your local gym to world competitions, giving the knees the protection and support they need when bearing huge amounts of weight.
Crossfit knee sleeves are great for the more versatile and dynamic movements in such a workout, giving people the strength and stability where it's needed without compromising range of movement.