A good shoulder pad will provide protection in all areas including the collar bone, ribs, sternum, chest, back, and biceps.  A good fit is essential for the prevention of injury. Some shoulder pads come with removable abdominal guards and adjustable bicep guards. Shoulder pads worn too large will restrict movement in the shoulders, resulting in a loss of shooting and passing ability. When pads are loose, they do not fit to the body properly. Sticks can get in these gaps and cause injury. 

Measurements for Shoulder Protection - Measure the length in inches from below the armpits and around the chest. This measurement is listed in the tables below: