High Waist Trainer +Thigh Trimmer+Hip Raise. The 3 in 1 waist thigh trimmer and butt lifter is designed to provide target compression and heat retention which can help to burn excess fat and slim your waist and your thigh, lift your hips at the same time.The waist trainer belt helps to increase blood flow, ease muscle pain around the groin, hips, and lower back. Playing a good role in protection during exercise and effectively prevent muscle strain.