Overlapping ventilation cover to regulate pressure in stronger gusts, simple opening bysafety runner, sturdy fibreglass shaft, flexible fibreglass ribs, high quality windproof systemfor maximum frame flexibility in stormy conditions, water and dirt-repellent cover propertiesthrough durable FONEWR nano coating, straight handle with promotional labelling option,large diameter for multiple people, winner of the reddot design award 2010, nominated for"Designpreis Deutschland 2011"