So this TrainingGirl waist trainer is seriously effective if you're looking for that extra support during workouts or just want some tummy control under your clothes. It's made from latex-free neoprene, which is great because it doesn't cause skin irritation even during sweaty exercise sessions. The five flexible steel bones provide really good support without being uncomfortable - they bend with your body but spring back to maintain the shaping. What's impressive is how it promotes sweating in your core area - it really does create that sauna effect that helps you shed water weight and feel like you're getting more out of your workouts. The three-row hook closure lets you adjust the tightness as you progress or depending on what you're doing. I've worn mine for everything from weight training to cardio sessions, and it provides excellent core support that actually helps with posture. The height is generous too - about 31cm - so it covers your entire torso area for comprehensive support. It does an amazing job of smoothing everything out under clothes - no more worrying about bulges or muffin top when you're wearing fitted outfits. The quality is solid - the stitching is strong, and the materials feel durable enough to withstand regular washing and use. It takes a couple of days to get used to the compression feeling, but once you do, it becomes really comfortable. Definitely recommend if you want that extra support during exercise or just need some smoothing under your everyday clothes. Combined with healthy eating and regular activity, it can really help you achieve that hourglass silhouette you're working toward. Just make sure to measure carefully according to their size chart since the fit needs to be right to work properly and comfortably. Great value for a quality waist trainer that actually delivers on its promises!