Cass and Co. goes down below with this 'bum-buoying' boy short, secretly stitched to hitch up the hindquarters. Wear under bottoms for a supremely sculpted, smooth caboose. (Anyone in your wake might be seduced.) Pair with Cass' slimming tops tucked into the waistband for full-blown figure-firming. In a très-comfy nylon/spandex blend.