Toddler Boys' Reef Little Rover Flip Flop Sandals 88186266551 Grom won't trip. Grom won't slip. The Little Rover sandal has a water-friendly synthetic nubuck upper, a padded soft jersey liner, backstrap and a super soft Swellular cushion footbed for ?Instant Comfort.? Most importantly, these boys sandals have a Reef rubber outsole with Design Detailing for traction. Less falls and skinned knees equal more fun for you and for them. Toddler Boys' Reef Little Rover Flip Flop Sandals