Let’s talk about the SHAPERIN Men’s Neoprene Sauna Vest—a product that promises to turn your workouts into sweat sessions and sculpt your core. After testing it for weeks, here’s the real deal.

The Good: This vest delivers on sweat. The 2.1mm neoprene traps heat like a sauna, making me drip during cardio (hello, water weight loss!). The double-layer compression feels like a constant ab workout, and the steel bones actually helped my posture during deadlifts. Bonus: It’s discreet under shirts—I wore it to work (desk job + vest = sneaky calorie burn).

The Bad: Sizing is a nightmare. I’m usually a Medium but needed an XL—it runs crazy small. Also, the petroleum smell out of the box? Hang it outside for days or wash twice. And yeah, zippers can be flimsy (one reviewer’s broke immediately).

Pro Tip: Hand-wash ONLY. Toss it in the machine, and you’ll ruin the compression. For $30-$40, it’s decent if you size up strategically and don’t mind playing laundry roulette.

Verdict: Great for sweating buckets and back support, but prepare for a sizing puzzle and sniff-test drama. 3.5/5 stars—would rebuy if they fix the zippers.