Our popular FlashLift line is now part of our latest swimwear! Andrew Christian's FlashLIFT is our latest innovation in Butt Lifting and Contouring Technology for those seeking the perfect bubble-butt. This bikini is essential gear for every guy as it features an invisible back lifting support built into the seams of the underwear. The construction of the underwear automatically lifts the buttocks making it look firm and round without the need for any padding hidden inside. Most people can add up to 1/2 to 1 inches (1.3 - 2.5 cm) onto their current buttocks measurements helping them achieve a rounder fuller look with this amazing new feature.