Bodyboards; Skateboards; Skis; Snowboards; Snowshoes; Surfboards; Arm protectors for athletic use; Elbow guards for athletic use; Exercise machines; Ice skates; Knee guards for athletic use; Leg guards for athletic use; Palm protectors for athletic use; Protective padding for skateboarding; Protective padding for snowboarding; Protective supports for shoulders and elbows; Roller skates; Shin guards for athletic use; Skating boots with skates attached; Spring boards; In-line roller skates