In short, the proper fit keeps ice hockey fun. Skates are sized differently than shoes. Get measured by a qualified person. Shin pads come in different lengths. Pads should cover from the bottom of the knee to the top of the skate.
Pants come in different sizes and lengths.
Pants should cover the entire thigh and protect the upper hipbone area. Shoulder pads should fit snugly on the body. Elbow pads should fit snugly and not move during activity. Gloves should fit the size of the hand, and cover the lower forearm area just below the elbow pads. Helmets should fit snugly and include a chinstrap.