Let me start by saying this vest is no joke. The first time I zipped it up, the thick neoprene instantly made me feel like a human oven—in the best way possible. During my HIIT workouts, I could literally feel heat radiating around my core, and within minutes, sweat was pouring. It’s like having a personal sauna strapped to your torso.

The double waist belts? Game-changer. Unlike flimsy waist trainers I’ve tried before, these adjustable straps with heavy-duty Velcro let me crank the compression to my liking. Wore it under a hoodie during a 5K run, and the back support kept my posture locked in—no hunching over halfway through.

Pro tip: SIZE UP. I usually wear L but got an XL based on reviews, and it fits snug without cutting off circulation. Yes, it smells like a new wetsuit initially (hello, neoprene), but two cold hand-washes later, the odor vanished. Bonus: The steel bones prevent weird wrinkling, so it stays sculpted even after months of abuse.

Is it magic for spot-reducing belly fat? Nah—science says no product can do that. But as a tool to boost sweat and keep me mindful of my core? 10/10. Just hydrate like your life depends on it (because… well, it kinda does).