I just love this product from Gold Gym. I know one celebrity trainer who insists that all his clients wear them during every workout. I also wear one and love the support it gives me for my core. I think they're relatively inexpensive and I'm sure you can find similar belts in other department/sporting goods…
Golds Gym, Waist Trimmer, 8 inch wide, Fits up to 50 Waist, Neoprene, Brand New
A great addition to any exercise program, the Gold?s Gym Adjustable Waist Trimmer Belt wraps around your waist to offer support and help you shed
Gold's Gym 5-Zipper Adjustable Waist Trimmer Belt
Golds Gym waist trimmer belt - Adjustable size fits up to 50 inch waist trims
Gold's Gym Waist Trimmer Belt - Adjustable Size fits up to 50 inch Waist Trims
Golds Gym Waist Trimmer Belt
Waist Trainer Belt Adjustable Belt Tummy Control Girdle Accelerate Calorie Burning Workout Girdle Sliming Fitness Waist Trimmer
Gold's Gym Waist Trimmer & Support Belt
Golds Gym Waist Trimmer Belt - Adjustable Size Fits Up To 50-Inch - 05-0395GG for sale online
JSCULPT™ Fitness Belt, Black Waist Trainer
Golds Gym, Waist Trimmer, 8 inch wide, Fits up to 50 Waist, Neoprene, Brand New
Gold's Gym Waist Trimmer & Support Belt