Comfort and cushion are key in this Rider(TM) Men's Dunas III Sandal. Flexpand is an exclusive construction technology that Riderlab developed. - Millions of micro-air chambers for comfort and durability. - Sole: flexible, thin and lightweight. Upper: EVA-lined synthetic Leather. - Extra-soft fabric toe-piece. Insole: Soft EVA. - Cushioned. -Patterned for amazing comfort. 100% recyclable materials. - Earth friendly. 1 year Rider guarantee when they are registered. Imported. About Rider: Headquartered in Orlando, Florida Grendene USA Inc is the distributor of Rider Sandals. Grendene is the world's largest sandal manufacturer, producing all of the Rider sandals in its factories in Brazil. All of the Rider sandals are made from 100 percent recyclable material. Rider is continually working to improve and adjust each sandal to perfection. Rider sandals are custom designed with the latest tech features that are made to enhance comfort, support and aeration. Its sandals are no longer made just for lounging around at home; they are equipped and adjustable to fit any adventure.