Upper: Stretch-knit upper keeps little feet cool and comfy all day. Easy On Easy Off: Collapsible heel makes slipping them on and off effortless. Ultra Lightweight: Allows them to move freely. Warranty: Reef wants to make sure you’re satisfied with your purchase. All Reef products are covered by a manufacturer defect policy for up to one year from the date of purchase. Reef: Since 1984, Reef has been making high quality, ultra-comfortable footwear. Making sandals and shoes that take you from the beach to the streets and everywhere in-between.