A good product quality / made very interesting. The thickness of the envelope is more important than for items like tire often more expensive. Stability is really perfect, the risk of accidental falls are minimal. Aesthetic side I class 5 stars. Comfort is very good thanks to its shape particularly well studied. The low penetration in the water makes it easy to handle swivels according to the wind, which adds to the pleasure ..... do not forget your sunscreen .... It flies long moments of idleness. A advisor.