Bags especially designed for skis and surfboards; leashes (surfboard); non-motorised surfboards; non-motorised surfboards incorporating sails; paddles for surf skis; shaped polyurethane surfboard blanks; shaped surfboard blanks; surf boards; surf skis; surfboard covers; surfboard leashes; surfboard leg ropes (leashes); surfboard wax; surfboards; surfboards with sails (windsurfing boards); surfing apparatus; wax combs for surfboards