Gliding device comprising two walls

摘要

The snowboard (1) comprises a support wall (2) and a gliding wall (3) with a space between them. The walls are of the same length but the support wall is wider than the gliding wall. A closed volume (42) is delimited between the walls. The gliding wall has, from its first end (25) to its second end (27), a first curved tip (36), a central portion (37) and a second curved tip (38).